compound

If you compound a problem you add something to it to make it worse, like say, putting water on a grease fire. Compound means to combine; a compound is a combination or mixture of two or more things.

Compound has several specialized uses. A compound is either a mixture or two or more things, or a heavily guarded residence, such as a drug lord might have. In botany, a compound leaf consists of more than one part. In linguistics, a compound is a word that consists of two or more independent words. In chemistry, a compound is a substance created when atoms from chemical elements join together.

Definitions of compound
  1. noun
    a whole formed by a union of two or more elements or parts
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    type of:
    whole
    all of something including all its component elements or parts
  2. noun
    (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
    synonyms: chemical compound
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    types:
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    vanillin
    a crystalline compound found in vanilla beans and some balsam resins; used in perfumes and flavorings
    acceptor
    (chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated
    adduct
    a compound formed by an addition reaction
    antiknock
    any of various compounds that are added to gasoline to reduce engine knocking
    acid
    any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
    arsenide
    a compound of arsenic with a more positive element
    hydrogen cyanide
    a highly poisonous gas or volatile liquid that smells like bitter almonds; becomes a gas at around 90 degree Fahrenheit and is most dangerous when inhaled; the anhydride of hydrocyanic acid; used in manufacturing
    anionic compound
    a compound characterized by an active anion
    alkali, base
    any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
    binary compound
    chemical compound composed of only two elements
    taurine
    a colorless crystalline substance obtained from the bile of mammals
    chromogen
    a compound that can be converted to a pigment
    manganese tetroxide
    an oxide of manganese found naturally as hausmannite
    monomer
    a simple compound whose molecules can join together to form polymers
    ozonide
    any of a class of unstable chemical compounds resulting from the addition of ozone to a double bond in an unsaturated compound
    organic compound
    any compound of carbon and another element or a radical
    ammine
    a complex inorganic compound that contains ammonia molecules
    anhydride
    a compound formed from one or more other compounds in a reaction resulting in removal of water
    azide
    a chemical compound containing the azido group combined with an element or radical
    bitter principle
    any one of several hundred compounds having a bitter taste; not admitting of chemical classification
    buffer
    (chemistry) an ionic compound that resists changes in its pH
    calcium-cyanamide, cyanamide
    a compound used as a fertilizer and as a source of nitrogen compounds
    carbonyl
    a compound containing metal combined with carbon monoxide
    carbon disulfide
    a toxic colorless flammable liquid (CS2); used in the manufacture of rayon and cellophane and carbon tetrachloride and as a solvent for rubber
    cofactor
    a substance (as a coenzyme) that must join with another to produce a given result
    cementite, iron carbide
    a chemical compound that is a constituent of steel and cast iron; very hard and brittle
    chloropicrin, nitrochloroform
    a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas
    complex, coordination compound
    a compound described in terms of the central atom to which other atoms are bound or coordinated
    allomorph
    any of several different crystalline forms of the same chemical compound
    corrosive
    a substance having the tendency to cause corrosion (such a strong acids or alkali)
    aluminate
    a compound of alumina and a metallic oxide
    defoliant
    a chemical that is sprayed on plants and causes their leaves to fall off
    depilatory
    a chemical (usually a sulfide) used to remove hair or wool or bristles from hides
    derivative
    a compound obtained from, or regarded as derived from, another compound
    dimer
    a compound whose molecules are composed of two identical monomers
    fixer, fixing agent
    a chemical compound that sets or fixes something (as a dye or a photographic image)
    flavone
    a colorless crystalline compound that is part of a number of white or yellow plant pigments
    formulation, preparation
    a substance prepared according to a formula
    enantiomer, enantiomorph
    either one of a pair of compounds (crystals or molecules) that are mirror images on each other but are not identical
    exotherm
    a compound that gives off heat during its formation and absorbs heat during its decomposition
    goitrogen
    any substance (such as thiouracil) that induces the formation of a goiter
    benzofuran, coumarone, cumarone
    a colorless oily compound extracted from coal tar and used in manufacturing synthetic resins
    synthetic, synthetic substance
    a compound made artificially by chemical reactions
    hydrate
    any compound that contains water of crystallization
    hydroxide
    a chemical compound containing the hydroxyl group
    incense
    a substance that produces a fragrant odor when burned
    inorganic compound
    any compound that does not contain carbon
    repellant, repellent
    a chemical substance that repels animals
    repellant, repellent
    a compound with which fabrics are treated to repel water
    iodocompound
    a compound containing the covalent iodine radical
    isomer
    a compound that exists in forms having different arrangements of atoms but the same molecular weight
    hydrated oxide, hydroxide
    a compound of an oxide with water
    menthol
    a crystalline compound that has the cool and minty taste and odor that occurs naturally in peppermint oil; used as a flavoring and in medicine to relieve itching, pain, and nasal congestion
    nitrogen mustard
    a toxic compound resembling mustard gas in structure; important in cancer treatment
    nitride
    a compound containing nitrogen and a more electropositive element (such as phosphorus or a metal)
    oxide
    any compound of oxygen with another element or a radical
    polymer
    a naturally occurring or synthetic compound consisting of large molecules made up of a linked series of repeated simple monomers
    preservative
    a chemical compound that is added to protect against decay or decomposition
    benzoquinone, quinone
    any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes
    salt
    a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
    caustic
    any chemical substance that burns or destroys living tissue
    nitrate
    any compound containing the nitrate group (such as a salt or ester of nitric acid)
    chloride
    any compound containing a chlorine atom
    heterocycle, heterocyclic, heterocyclic compound
    a compound containing a heterocyclic ring
    silicide
    any of various compounds of silicon with a more electropositive element or radical
    siloxane
    any of a large class of compounds that have alternate silicon and oxygen atoms
    solvate
    a compound formed by solvation (the combination of solvent molecules with molecules or ions of the solute)
    sternutator, sternutatory
    a chemical substance that causes sneezing and coughing and crying
    stripper
    a chemical compound used to remove paint or varnish
    sulfide, sulphide
    a compound of sulphur and some other element that is more electropositive
    telluride
    any binary compound of tellurium with other more electropositive elements
    tenderiser, tenderizer
    a substance (as the plant enzyme papain) applied to meat to make it tender
    tetrachloride
    any compound that contains four chlorine atoms per molecule
    triazine
    any of three isomeric compounds having three carbon and three nitrogen atoms in a six-membered ring
    U308, yellowcake
    an impure mixture of uranium oxides obtained during the processing of uranium ore
    enamel
    a colored glassy compound (opaque or partially opaque) that is fused to the surface of metal or glass or pottery for decoration or protection
    pregnanediol
    a compound found in women's urine during certain phases of the menstrual cycle and in the urine of pregnant women
    cleaner, cleanser, cleansing agent
    a preparation used in cleaning something
    aldehyde
    any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
    alcapton, alkapton, homogentisic acid
    an acid formed as an intermediate product of the metabolism of tyrosine and phenylalanine
    Plasticine
    a synthetic material resembling clay but remaining soft; used as a substitute for clay or wax in modeling (especially in schools)
    acetate, ethanoate
    a salt or ester of acetic acid
    lead tetraethyl, tetraethyl lead
    a clear oily poisonous liquid added to gasoline to prevent knocking
    aliphatic compound
    organic compound that is an alkane or alkene or alkyne or their derivative
    alkylbenzene
    organic compound that has an alkyl group bound to a benzene ring
    alkyl halide, haloalkane
    organic compound in which halogen atoms have been substituted for hydrogen atoms in an alkane
    amino acid, aminoalkanoic acid
    organic compounds containing an amino group and a carboxylic acid group
    citrate
    a salt or ester of citric acid
    diamine
    any organic compound containing two amino groups
    enol
    an organic compound that contains a hydroxyl group bonded to a carbon atom which in turn is doubly bonded to another carbon atom
    arsenate
    a salt or ester of arsenic acid
    arsenic acid
    an acid formed from arsenic pentoxide
    cerotic acid, hexacosanoic acid
    a white solid fatty acid found in waxes (such as beeswax)
    chlorate
    any salt of chloric acid
    chloric acid
    (HClO3) a strong unstable acid with an acrid odor found in chlorate salts
    chlorous acid
    (HClO2) a strongly oxidizing acid; known only in solution
    monobasic acid
    an acid containing only one replaceable hydrogen atom per molecule
    dibasic acid
    an acid containing two replaceable hydrogen atoms per molecule
    dibasic salt
    a salt derived by replacing two hydrogen atoms per molecule
    tribasic acid
    an acid containing three replaceable hydrogen atoms per molecule
    tetrabasic acid
    an acid containing four replaceable hydrogen atoms per molecule
    fulminic acid
    (CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acid
    gamma acid
    a crystalline acid used to make azo dyes
    hydriodic acid
    (HI) a colorless or yellow aqueous solution of hydrogen iodide
    hydrocyanic acid, prussic acid
    a solution of hydrogen cyanide in water; weak solutions are used in fumigating and in the synthesis of organic compounds
    hydroxy acid
    any acid that has hydroxyl groups in addition to the hydroxyl group in the acid itself
    hypochlorite
    any salt or ester of hypochlorous acid
    hyponitrous acid
    an explosive white crystalline weak acid (H2N2O2)
    lysergic acid
    a crystalline acid often used in medical research; obtained from ergotic alkaloids
    manganic acid
    a dibasic acid (H2MnO4) found only in solution and in manganate salts
    pyrophosphate
    a salt or ester of pyrophosphoric acid
    2-methylpropenoic acid, methacrylic acid
    an unsaturated acid (C4H6O2) used to make resins and plastics
    selenic acid
    a strong acid (H2SeO4) analogous to sulfuric acid
    sulfonate
    a salt of sulphonic acid
    sulfonic acid, sulphonic acid
    an acid derived from sulphuric acid
    titanic acid
    a white weak acid that is a hydrated form of titanium dioxide
    titania, titanic oxide, titanium dioxide, titanium oxide
    a white powder used as a pigment for its high covering power and durability
    chelate, chelate compound
    a heterocyclic compound having a metal ion attached by coordinate bonds to at least two nonmetal ions
    halon
    a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer
    phosphor
    a synthetic substance that is fluorescent or phosphorescent; used to coat the screens of cathode ray tubes
    common salt, sodium chloride
    a white crystalline solid consisting mainly of sodium chloride (NaCl)
    lactate
    a salt or ester of lactic acid
    perchlorate
    a salt of perchloric acid
    perchloric acid
    a powerful oxidizing agent; forms perchlorates
    pentoxide
    an oxide containing five atoms of oxygen in the molecule
    peptone
    any of various water-soluble compounds that form by hydrolysis in the digestion of proteins to amino acids
    quaternary ammonium compound
    a compound derived from ammonium with hydrogen atoms replaced by organic groups; used as surface-active agents, disinfectants, and in drugs
    proenzyme, zymogen
    any of a group of compounds that are inactive precursors of enzymes and require some change (such as the hydrolysis of a fragment that masks an active enzyme) to become active
    propylthiouracil
    a crystalline compound used as an antithyroid drug in the treatment of goiter
    pyridine
    a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
    pyrites
    any of various metallic-looking sulfides (of which pyrite is the commonest)
    purine
    a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances
    purine
    any of several bases that are derivatives of purine
    ether
    any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
    acetal
    any organic compound formed by adding alcohol molecules to aldehyde molecules
    aldehyde-alcohol, aldol
    an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde; contains an alcohol group (-OH) and an aldehyde group (-CHO)
    alkali
    a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture
    alkaloid
    natural bases containing nitrogen found in plants
    amide
    any organic compound containing the group -CONH2
    rennet
    a substance that curdles milk in making cheese and junket
    azadirachtin
    insecticide
    carboxylic acid
    an organic acid characterized by one or more carboxyl groups
    aminobenzoic acid
    a derivative of benzoic acid
    ammonia
    a pungent gas compounded of nitrogen and hydrogen (NH3)
    ammonium chloride, sal ammoniac
    a white salt used in dry cells
    stercobilinogen, urobilinogen
    a chromogen formed in the intestine from the breakdown of bilirubin; yields urobilins on oxidation; some is excreted in the feces and some is resorbed and excreted in bile or urine
    aqua fortis, nitric acid
    acid used especially in the production of fertilizers and explosives and rocket fuels
    nitrous acid
    an unstable inorganic acid known only in solution and as nitrite salts
    nitrogen oxide
    any of several oxides of nitrogen formed by the action of nitric acid on oxidizable materials; present in car exhausts
    aqua regia, nitrohydrochloric acid
    a yellow fuming corrosive mixture of nitric and hydrochloric acid that dissolves metals (including gold)
    acetic anhydride
    a compound that is needed in order to refine opium into heroin
    phthalic anhydride
    a white cyclic anhydride
    hydrazoite
    a salt of hydrazoic acid
    thiazine
    a compound made up of a ring of four carbon atoms and one sulfur atom and one nitrogen atom
    barbituric acid, malonylurea
    a white crystalline acid derived from pyrimidine; used in preparing barbiturate drugs
    benzoate
    any salt or ester of benzoic acid
    Prevacid, lansoprazole
    antacid (trade name Prevacid) that suppresses acid secretion in the stomach
    borate
    a salt or ester of boric acid
    boracic acid, boric acid
    any of various acids containing boron and oxygen
    boric acid, orthoboric acid
    a white or colorless slightly acid solid that is soluble in water and ethanol; used in the manufacture of glass and paper and adhesives and in detergents and as a flux in welding; also used as an antiseptic and food preservative
    borosilicate
    a salt of boric and silicic acids
    bromic acid
    an unstable acid used as an oxidizing agent
    cacodyl, tetramethyldiarsine
    a poisonous oily liquid with a garlicky odor composed of 2 cacodyl groups; undergoes spontaneous combustion in dry air
    calcium carbide
    a grey salt of calcium (CaC) used in making acetylene
    calcium lactate
    a white crystalline salt made by the action of lactic acid on calcium carbonate; used in foods (as a baking powder) and given medically as a source of calcium
    calcium nitrate
    a deliquescent salt that is soluble in water; sometimes used as a source of nitrogen in fertilizers
    burnt lime, calcined lime, calcium oxide, calx, fluxing lime, lime, quicklime, unslaked lime
    a white crystalline oxide used in the production of calcium hydroxide
    calcium octadecanoate, calcium stearate
    an insoluble calcium salt of stearic acid and palmitic acid; it is formed when soap is mixed with water that contains calcium ions and is the scum produced in regions of hard water
    carbamate
    a salt (or ester) of carbamic acid
    carbamic acid
    an acid that is known only by virtue of its salts (as ammonium carbamate) or its esters (as urethane)
    carbide
    a binary compound of carbon with a more electropositive element
    cellulose nitrate, guncotton, nitrocellulose, nitrocotton
    a nitric acid ester; used in lacquers and explosives
    carbolic acid, hydroxybenzene, oxybenzene, phenol, phenylic acid
    a toxic white soluble crystalline acidic derivative of benzene; used in manufacturing and as a disinfectant and antiseptic; poisonous if taken internally
    carbon tet, carbon tetrachloride, perchloromethane, tetrachloromethane
    a colorless nonflammable liquid used as a solvent for fats and oils; because of its toxicity its use as a cleaning fluid or fire extinguisher has declined
    carbonate
    a salt or ester of carbonic acid (containing the anion CO3)
    fulminate
    a salt or ester of fulminic acid
    carbonic acid
    a weak acid known only in solution; formed when carbon dioxide combines with water
    neurochemical
    any organic substance that occurs in neural activity
    acid anhydrides, acyl anhydrides
    organic compounds that react with water to form an acid
    acid halide, acyl halide
    organic compounds containing the group -COX where X is a halogen atom
    chromic acid
    an unstable acid known only in solution and as chromate salts
    chromate
    any salt or ester of chromic acid
    citric acid
    a weak water-soluble acid found in many fruits (especially citrus fruits); used as a flavoring agent
    hydrochloride
    a complex consisting of an organic base in association with hydrogen chloride
    copper oxide
    an oxide of copper
    aluminium hydroxide, aluminum hydroxide, hydrated aluminium oxide, hydrated aluminum oxide
    white crystalline compound that occurs naturally as the mineral gibbsite
    coal-tar creosote, creosote
    a dark oily liquid obtained by distillation of coal tar; used as a preservative for wood
    creosote
    a colorless or yellowish oily liquid obtained by distillation of wood tar; used as an antiseptic
    cyanamid, cyanamide
    a weak soluble dibasic acid (the parent acid of cyanamide salts)
    cyanic acid
    a colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide
    cyanide
    an extremely poisonous salt of hydrocyanic acid
    cyanide, nitril, nitrile
    any of a class of organic compounds containing the cyano radical -CN
    cyanohydrin
    any organic compound in which the cyano radical -CN and the hydroxyl radical -OH are attached to the same carbon atom
    cyanuric acid
    a trimer of cyanic acid
    DNA, deoxyribonucleic acid, desoxyribonucleic acid
    (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information
    RNA, ribonucleic acid
    (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell
    dioxide
    an oxide containing two atoms of oxygen in the molecule
    H2O, water
    binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
    ester
    formed by reaction between an acid and an alcohol with elimination of water
    soda niter, sodium nitrate
    (NaNO3) used especially as a fertilizer and explosive
    niter, nitre, potassium nitrate, saltpeter, saltpetre
    (KNO3) used especially as a fertilizer and explosive
    potassium bromide
    a white crystalline salt (KBr) used as a sedative and in photography
    potassium chlorate
    a white salt (KClO3) used in matches, fireworks, and explosives; also used as a disinfectant and bleaching agent
    potassium dichromate
    an orange-red salt used in making dyes and in photography
    ferric oxide
    a red oxide of iron
    ferricyanic acid
    a brown unstable acid formed from ferricyanide
    ferricyanide
    salt of ferricyanic acid obtained by oxidation of a ferrocyanide
    ferrocyanic acid
    a white unstable acid formed from ferrocyanide salts
    ferrocyanide
    salt of ferrocyanic acid usually obtained by a reaction of a cyanide with iron sulphate
    fixative
    a compound (such as ethanol or formaldehyde) that fixes tissues and cells for microscopic study
    fluoroboric acid
    an acid of fluorine and boron
    fluoroboride
    a salt of fluoroboric acid
    fluosilicate
    salt of fluosilicic acid
    fluosilicic acid, hydrofluosilicic acid
    an unstable poisonous corrosive acid known primarily in the form of its salts
    formic acid
    a colorless pungent fuming vesicatory liquid acid HCOOH found naturally in ants and many plants or made catalytically from carbon monoxide and steam; used in finishing textiles and paper and in the manufacture of insecticides and fumigants
    fumaric acid
    a colorless crystalline acid with a fruity taste; used in making polyester resins
    furan, furane, furfuran
    a colorless toxic flammable liquid used in the synthesis of nylon
    gallic acid
    a colorless crystalline acid obtained from tannin
    glutamate
    a salt or ester of glutamic acid
    glyceric acid
    a syrupy acid obtained by oxidation of glycerol or glyceraldehyde
    glycerinated gelatin
    a gelatinous preparation made from gelatin and glycerin and water; used as a base for ointments and suppositories
    Nitrospan, Nitrostat, glyceryl trinitrate, nitroglycerin, nitroglycerine, trinitroglycerin
    a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat)
    glycoside
    a group of compounds derived from monosaccharides
    glycolic acid, glycollic acid, hydroxyacetic acid
    a translucent crystalline compound found in sugar cane and sugar beets and unripe grapes
    resin, rosin
    any of a class of solid or semisolid viscous substances obtained either as exudations from certain plants or prepared by polymerization of simple molecules
    synthetic resin
    a resin having a polymeric structure; especially a resin in the raw state; used chiefly in plastics
    copolymer
    a polymer consisting of two or more different monomers
    polyurethan, polyurethane
    any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber
    halide
    a salt of any halogen acid
    halocarbon
    one of various compounds of carbon and any of the halogens
    hemiacetal
    an organic compound usually formed as an intermediate product in the preparation of acetals from aldehydes or ketones
    erythrocytolysin, erythrolysin, haemolysin, hemolysin
    any substance that can cause lysis (destruction) of erythrocytes (red blood cells) and the release of their hemoglobin
    humic substance
    an organic residue of decaying organic matter
    hydride
    any binary compound formed by the union of hydrogen and other elements
    hydrobromic acid
    an aqueous solution of hydrogen bromide that is a strong liquid acid
    hydrocarbon
    an organic compound containing only carbon and hydrogen
    chlorohydric acid, hydrochloric acid
    an aqueous solution of hydrogen chloride; a strongly corrosive acid
    hydrogen chloride
    a colorless corrosive gas (HCl)
    hydrofluoric acid
    a weak poisonous liquid acid; formed by solution of hydrogen fluoride in water
    hydroiodic acid
    an acid formed by aqueous solution of hydrogen iodide
    hydrogen sulfide
    a sulfide having the unpleasant smell of rotten eggs
    hypo, sodium thiosulfate, sodium thiosulphate
    a compound used as a fixing agent in photographic developing
    hypochlorous acid
    a weak unstable acid known only in solution and in its salts; used as a bleaching agent and as an oxidizing agent
    glyoxaline, imidazole, iminazole
    an organic base C3H4N2; a histamine inhibitor
    insect repellant, insect repellent, insectifuge
    a chemical substance that repels insects
    iodic acid
    a soluble crystalline acid; used as a reagent and disinfectant
    iron disulfide
    a compound containing two atoms of sulfur combined with iron
    isocyanate
    a salt or ester of isocyanic acid
    isocyanic acid
    an acid known only in the form of its esters
    itaconic acid
    a crystalline carboxylic acid; occurs in some fermentations of sugars
    joss stick
    a slender stick of incense burned before a joss by the Chinese
    ketone
    any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals
    lignin
    a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
    calcium hydrate, calcium hydroxide, caustic lime, hydrated lime, lime, lime hydrate, slaked lime
    a caustic substance produced by heating limestone
    calcium chloride
    a deliquescent salt; used in de-icing and as a drying agent
    calcium sulfate, calcium sulphate
    a white salt (CaSO4)
    lye
    a strong solution of sodium or potassium hydroxide
    macromolecule, supermolecule
    any very large complex molecule; found only in plants and animals
    magnesium hydroxide
    a white crystalline powder used chiefly in medicines
    magnesium nitride
    a nitride containing nitrogen and magnesium
    maleic acid
    a colorless crystalline compound found in unripe fruit (such as apples or tomatoes or cherries) and used mainly to make polyester resins
    manganate
    a salt of manganic acid containing manganese as its anion
    cyanuramide, melamine
    a white crystalline organic base; used mainly in making melamine resins
    calomel, mercurous chloride
    a tasteless colorless powder used medicinally as a cathartic
    monohydrate
    a hydrate that contains one molecule of water per molecule of the compound
    monoxide
    an oxide containing just one atom of oxygen in the molecule
    chrome alum
    a violet-colored salt used in hide tanning and as a mordant in dyeing
    tartrate
    a salt or ester of tartaric acid
    nebula
    a medicinal liquid preparation intended for use in an atomizer
    nitrobenzene
    a poisonous oily water-soluble liquid used as a solvent and in the manufacture of aniline
    polyamide, polymeric amide
    a polymer containing repeated amide groups
    oxalacetate, oxaloacetate
    a salt or ester of oxalacetic acid
    oxalacetic acid, oxaloacetic acid
    an acid formed by oxidation of maleic acid (as in metabolism of fats and carbohydrates)
    oxalate
    a salt or ester of oxalic acid
    ethanedioic acid, oxalic acid
    a toxic colorless crystalline organic acid found in oxalis and other plants; used as a bleach and rust remover and in chemical analysis
    oxime
    any compound containing the group -C=NOH
    oxyacid, oxygen acid
    any acid that contains oxygen
    pantothen, pantothenic acid
    a vitamin of the vitamin B complex that performs an important role in the oxidation of fats and carbohydrates and certain amino acids; occurs in many foods
    PABA, para aminobenzoic acid
    a metabolic acid found in yeast and liver cells; used to make dyes and drugs and sun blockers
    pectic acid
    a complex acid that occurs in ripe fruit and some vegetables
    permanganate
    a dark purple salt of permanganic acid; in water solution it is used as a disinfectant and antiseptic
    permanganic acid
    an unstable purple acid (HMnO4) known only in solution or of permanganate salts
    peroxide
    an inorganic compound containing the divalent ion -O-O-
    petrochemical
    any compound obtained from petroleum or natural gas
    inorganic phosphate, orthophosphate, phosphate
    a salt of phosphoric acid
    creatine phosphate, creatine phosphoric acid, phosphocreatine
    an organic compound of creatine and phosphoric acid; found in the muscles of vertebrates where its hydrolysis releases energy for muscular contraction
    phthalic acid
    a colorless acid used to make dyes and perfumes
    picric acid
    a yellow toxic highly explosive strong acid; used in high explosives and as a dye and in chemical reactions
    phenol
    any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups
    polyphosphate
    a salt or ester of polyphosphoric acid
    polish
    a preparation used in polishing
    caustic potash, potash, potassium hydroxide
    a potassium compound often used in agriculture and industry
    acrylate, propenoate
    a salt or ester of propenoic acid
    pyrimidine
    a heterocyclic organic compound with a penetrating odor
    pyrimidine
    any of several basic compounds derived from pyrimidine
    pyruvic acid
    a colorless acid formed as an important intermediate in metabolism or fermentation
    quassia
    a bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood and bark of trees of the genera Quassia and Picrasma
    minium, red lead
    a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
    rubber, synthetic rubber
    any of various synthetic elastic materials whose properties resemble natural rubber
    salicylate
    a salt of salicylic acid (included in several commonly used drugs)
    double salt
    a solution of two simple salts that forms a single substance on crystallization
    bile salt
    a salt of bile acid and a base; functions as an emulsifier of lipids and fatty acids
    Glauber's salt, Glauber's salts
    (Na2SO4.10H2O) a colorless salt used as a cathartic
    cream of tartar, potassium bitartrate, potassium hydrogen tartrate, tartar
    a salt used especially in baking powder
    sodium chlorate
    a colorless salt (NaClO3) used as a weed killer and an antiseptic
    dichromic acid
    the hypothetical acid (H2Cr2O7) from which dichromates are derived; known only in solution and in the form of dichromate salts
    bichromate, dichromate
    a salt of the hypothetical dichromic acid
    sodium bichromate, sodium dichromate
    a red-orange salt used as a mordant
    ammonium nitrate
    used as an explosive and fertilizer and rocket propellant
    silver nitrate
    a nitrate used in making photographic emulsions; also used in medicine as a cautery and as a topical antibacterial agent
    caustic soda, sodium hydroxide
    a strongly alkaline caustic used in manufacturing soap and paper and aluminum and various sodium compounds
    microcosmic salt
    a white salt present in urine and used to test for metal oxides
    trichloride
    any compound containing three chlorine atoms in each molecule
    bichloride, dichloride
    a compound containing two chlorine atoms per molecule
    perchloride
    a chloride containing an unusually high proportion of chlorine
    aluminium chloride, aluminum chloride
    a chloride used as a wood preservative or catalyst
    dichloromethane, methylene chloride
    a nonflammable liquid used as a solvent and paint remover and refrigerant
    obidoxime chloride
    a chloride used as an antidote for nerve gases such as sarin or VX
    silver chloride
    a chloride used chiefly in the manufacture of photographic emulsions
    stannic chloride
    a colorless caustic liquid made by treating tin with chlorine
    starch
    a commercial preparation of starch that is used to stiffen textile fabrics in laundering
    hemin, protohemin
    a reddish-brown chloride of heme; produced from hemoglobin in laboratory tests for the presence of blood
    silicic acid
    a jellylike substance (hydrated silica)
    silicate
    a salt or ester derived from silicic acid
    silicone, silicone polymer
    any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation
    silica, silicon dioxide, silicon oxide
    a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
    smelling salts
    a pungent preparation of ammonium carbonate and perfume; sniffed as a stimulant to relieve faintness
    sal soda, soda, soda ash, sodium carbonate, washing soda
    a sodium salt of carbonic acid; used in making soap powders and glass and paper
    sodium carboxymethyl cellulose
    a gummy substance that is a sodium salt of carboxymethyl cellulose; used as a thickening or emulsifying agent
    sodium fluoride
    a colorless crystalline salt of sodium (NaF) used in fluoridation of water and to prevent tooth decay
    spice
    aromatic substances of vegetable origin used as a preservative
    steroid
    any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects
    nonsteroid, nonsteroidal
    an organic compound that does no contain a steroid
    sulfanilic acid, sulphanilic acid
    a crystalline acid made from aniline and used as a dye
    sulfate, sulphate
    a salt or ester of sulphuric acid
    sulfur oxide, sulphur oxide
    any of several oxides of sulphur
    superoxide
    a metallic oxide containing the univalent anion O2-
    tetroxide
    an oxide containing four atoms of oxygen in the molecule
    thiouracil
    depresses the function of the thyroid gland
    thiocyanate
    a salt of thiocyanic acid; formed when alkaline cyanides are fused with sulfur
    thiocyanic acid
    an unstable acid that can be obtained by distilling a thiocyanate salt
    toluic acid
    an isomeric acid derived from toluene
    trimer
    a polymer (or a molecule of a polymer) consisting of three identical monomers
    trioxide
    an oxide containing three atoms of oxygen in the molecule
    triphosphoric acid
    an acid that is a partial anhydride of three molecules of phosphoric acid; known chiefly in the form of its salts and esters
    tungstate
    a salt of tungstic acid
    coenzyme Q, ubiquinone
    any of several quinones found in living cells and that function as coenzymes that transfer electrons from one molecule to another in cell respiration
    undecylenic acid
    an acid that is a component of perspiration
    uranyl nitrate
    a yellow salt obtained by the reaction of uranium salts with nitric acid
    carbamide, urea
    the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics
    uric acid
    a white tasteless odorless crystalline product of protein metabolism; found in the blood and urine
    urate
    a salt of uric acid
    vanadate
    a salt or ester of vanadic acid; an anion containing pentavalent vanadium
    oil of vitriol, sulfuric acid, sulphuric acid, vitriol
    (H2SO4) a highly corrosive acid made from sulfur dioxide; widely used in the chemical industry
    cadmium sulfide
    a yellow sulfide used chiefly as a pigment
    flowers of zinc, philosopher's wool, philosophers' wool, zinc oxide
    oxide of zinc; a white powder used as a pigment or in cosmetics or glass or inks and in zinc ointment
    zinc sulfide, zinc sulphide
    a yellow to white crystalline fluorescent compound that occurs naturally as sphalerite or wurtzite and is used as a luminous pigment
    zirconia, zirconium dioxide, zirconium oxide
    a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes
    imide
    any of a class of organic compounds that contain the divalent radical -CONHCO-
    xanthate
    a salt or ester of xanthic acid
    xanthic acid
    any of a class of unstable organic acids containing sulphur
    xanthine
    crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
    type of:
    chemical, chemical substance
    material produced by or used in a reaction involving changes in atoms or molecules
  3. adjective
    composed of more than one part
    compound leaves are composed of several lobes”
    compound flower heads”
    Synonyms:
    bilobate, bilobated, bilobed
    having two lobes
    binate
    growing in two parts or in pairs
    bipartite
    divided into two portions almost to the base
    bipinnate
    of a leaf shape; having doubly pinnate leaflets (as ferns)
    bipinnatifid
    pinnatifid with the segments also pinnatifid
    cleft, dissected
    having one or more incisions reaching nearly to the midrib
    conjugate
    (of a pinnate leaflet) having only one pair of leaflets
    decompound
    of a compound leaf; consisting of divisions that are themselves compound
    abruptly-pinnate, even-pinnate, paripinnate
    (of a leaf shape) pinnate with a pair of leaflets at the apex
    incised
    sharply and deeply indented
    lobate, lobed
    having deeply indented margins but with lobes not entirely separate from each other
    imparipinnate, odd-pinnate
    (a leaf shape) pinnate with a single leaflet at the apex
    palm-shaped, palmate
    of a leaf shape; having leaflets or lobes radiating from a common point
    palmatifid
    of a leaf shape; palmately cleft rather than lobed
    parted
    having a margin incised almost to the base so as to create distinct divisions or lobes
    pedate
    of a leaf shape; having radiating lobes, each deeply cleft or divided
    pinnate, pinnated
    (of a leaf shape) featherlike; having leaflets on each side of a common axis
    pinnatifid
    (of a leaf shape) cleft nearly to the midrib in broad divisions not separated into distinct leaflets
    pinnatisect
    (of a leaf shape) cleft nearly to the midrib in narrow divisions not separated into distinct leaflets
    quinquefoliate
    (of a leaf shape) having five leaflets
    radiate
    having rays or ray-like parts as in the flower heads of daisies
    ternate
    (of a leaf shape) consisting of three leaflets or sections
    trifoliate, trifoliated, trifoliolate
    (of a leaf shape) having three leaflets
    three-lobed, trilobate, trilobated, trilobed
    (of a leaf shape) divided into three lobes
    tripinnate, tripinnated
    (of a leaf shape) thrice pinnate
    tripinnatifid
    (of a leaf shape) bipinnatifid with segments pinnatifid
    complex
    complicated in structure; consisting of interconnected parts
    smooth
    of the margin of a leaf shape; not broken up into teeth
    rough
    of the margin of a leaf shape; having the edge cut or fringed or scalloped
    see moresee less
    Antonyms:
    simple, unsubdivided
    (botany) of leaf shapes; of leaves having no divisions or subdivisions
    acerate, acerose, acicular, needle-shaped
    narrow and long and pointed; as pine leaves
    acuminate
    (of a leaf shape) narrowing to a slender point
    apiculate
    (of a leaf shape) having a short sharply pointed tip
    caudate
    (of a leaf shape) tapering gradually into a long taillike tip
    cordate, cordiform, heart-shaped
    (of a leaf) shaped like a heart
    cuneate, wedge-shaped
    (of a leaf shape) narrowly triangular, wider at the apex and tapering toward the base
    deltoid
    triangular or suggesting a capital delta, with a point at the apex
    dolabrate, dolabriform
    having the shape of the head of an ax or cleaver
    elliptic
    (of a leaf shape) in the form of an ellipse
    bladelike, ensiform, sword-shaped, swordlike
    shaped like a sword blade
    hastate, spearhead-shaped
    (of a leaf shape) like a spear point, with flaring pointed lobes at the base
    lancelike, lanceolate
    (of a leaf shape) shaped like a lance head; narrow and tapering to a pointed apex
    elongate, linear
    (of a leaf shape) long and narrow
    lyrate
    (of a leaf shape) having curvature suggestive of a lyre
    needled
    of trees whose leaves are acerate
    two-needled
    (of conifers) having two needles
    three-needled
    (of conifers) having three needles
    four-needled
    (of conifers) having four needles
    five-needled
    (of conifers) having five needles
    obtuse
    (of a leaf shape) rounded at the apex
    oblanceolate
    (of a leaf shape) having a broad rounded apex and a tapering base
    oblong
    (of a leaf shape) having a somewhat elongated form with approximately parallel sides
    obovate
    (of a leaf shape) egg-shaped with the narrower end at the base
    orbicular, orbiculate
    circular or nearly circular
    ovate
    of a leaf shape; egg-shaped with the broader end at the base
    fiddle-shaped, pandurate, panduriform
    (of a leaf shape) having rounded ends and a contracted center
    peltate, shield-shaped
    (of a leaf shape) round, with the stem attached near the center of the lower surface rather than the margin (as a nasturtium leaf for example)
    perfoliate
    (of a leaf) having the base united around (and apparently pierced by) the stem
    kidney-shaped, reniform
    (of a leaf or bean shape) resembling the shape of kidney
    arrow-shaped, sagittate, sagittiform
    (of a leaf shape) like an arrow head without flaring base lobes
    spatula-shaped, spatulate
    (of a leaf shape) having a broad rounded apex and a narrow base
    unlobed
    without lobes
    simple
    having few parts; not complex or complicated or involved
    smooth
    of the margin of a leaf shape; not broken up into teeth
    show more antonyms...
  4. adjective
    consisting of two or more substances or ingredients or elements or parts
    “soap is a compound substance”
    “housetop is a compound word”
    “a blackberry is a compound fruit”
    Synonyms:
    complex
    complicated in structure; consisting of interconnected parts
  5. adjective
    composed of many distinct individuals united to form a whole or colony
    synonyms: colonial
    complex
    complicated in structure; consisting of interconnected parts
  6. verb
    combine so as to form a whole; mix
    compound the ingredients”
    synonyms: combine
    see moresee less
    types:
    show 8 types...
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    incorporate, integrate
    make into a whole or make part of a whole
    heterodyne
    combine (a radio frequency wave) with a locally generated wave of a different frequency so as to produce a new frequency equal to the sum or the difference between the two
    sulfurette, sulphurette
    combine with sulfur
    carburet
    combine with carbon
    fold
    incorporate a food ingredient into a mixture by repeatedly turning it over without stirring or beating
    reintegrate
    integrate again
    build in
    make something an integral part of something else
    re-incorporate
    incorporate again or anew
    type of:
    amalgamate, commix, mingle, mix, unify
    to bring or combine together or with something else
  7. verb
    put or add together
    synonyms: combine
    see moresee less
    types:
    show 4 types...
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    totalise, totalize
    make into a total
    recombine
    to combine or put together again
    mix
    combine (electronic signals)
    synthesise, synthesize
    combine so as to form a more complex, product
    type of:
    add
    make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of
  8. verb
    create by mixing or combining
    see moresee less
    type of:
    assemble, piece, put together, set up, tack, tack together
    create by putting components or members together
  9. noun
    an enclosure of residences and other buildings (especially in the Orient)
    see moresee less
    type of:
    enclosure
    a structure consisting of an area that has been enclosed for some purpose
  10. verb
    make more intense, stronger, or more marked
    synonyms: deepen, heighten, intensify
    see moresee less
    types:
    show 8 types...
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    heat up, hot up, screw up
    make more intense
    fan
    make (an emotion) fiercer
    enhance, heighten, raise
    increase
    amplify
    increase the volume of
    sharpen
    make crisp or more crisp and precise
    heighten, sharpen
    make (one's senses) more acute
    potentiate
    increase the effect of or act synergistically with (a drug or a physiological or biochemical phenomenon)
    subtilise, subtilize
    make (senses) more keen
    type of:
    increase
    become bigger or greater in amount
  11. verb
    calculate principal and interest
    see moresee less
    type of:
    account, calculate
    keep an account of
Word Family