base

The base of something is usually the foundation, starting point, or main ingredient of something. A soup base is the flavoring or broth you use to get your soup started.

If you're a soldier, you might live on a base ("place where you're stationed"). When your unit plays softball, you must touch each base before scoring. The bottom of pentagon-shaped home plate is its base ("bottom"). Yelling at or pushing the empire is considered base ("mean-spirited") behavior. At end of the season, your team might get a trophy, which sits on a base ("pedestal"), or a plaque made of brass, an alloy of zinc, which is base metal (it corrodes easily).

Primary Meanings of base

1.
nadj
lowest support of a structure
serving as or forming a base
2.
nv
the most important or necessary part of something
use as a basis for; found on
3.
n
a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
4.
n
(numeration system) the positive integer that is equivalent to one in the next higher counting place
5.
n
a place that the runner must touch before scoring
6.
n
(electronics) the part of a transistor that separates the emitter from the collector
7.
v
use (purified cocaine) by burning it and inhaling the fumes
8.
adj
of low birth or station (`base' is archaic in this sense)
Full Definitions of base
1

n lowest support of a structure

“it was built on a base of solid rock”
Synonyms:
foot, foundation, fundament, groundwork, substructure, understructure
Types:
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bed
a foundation of earth or rock supporting a road or railroad track
raft foundation
a foundation (usually on soft ground) consisting of an extended layer of reinforced concrete
railroad bed
a bed on which railroad track is laid
roadbed
a bed supporting a road
Type of:
support
supporting structure that holds up or provides a foundation

n a support or foundation

“the base of the lamp”
Synonyms:
pedestal, stand
Types:
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brass monkey
a metal stand that formerly held cannon balls on sailing ships
staddle
a base or platform on which hay or corn is stacked
trivet
a stand with short feet used under a hot dish on a table
trivet
a three-legged metal stand for supporting a cooking vessel in a hearth
Type of:
support
any device that bears the weight of another thing

n a flat bottom on which something is intended to sit

“a tub should sit on its own base
Type of:
bottom, underside, undersurface
the lower side of anything

n the bottom or lowest part

“the base of the mountain”
Type of:
part, piece
a portion of a natural object

n the bottom side of a geometric figure from which the altitude can be constructed

“the base of the triangle”
Type of:
flank
a subfigure consisting of a side of something

n (anatomy) the part of an organ nearest its point of attachment

“the base of the skull”
Type of:
bottom
the lowest part of anything

n a lower limit

Synonyms:
floor
Types:
price floor
floor below which prices are not allowed to fall
wage floor
floor below which wages are not allowed to fall
Type of:
control
the economic policy of controlling or limiting or curbing prices or wages etc.

adj serving as or forming a base

“the painter applied a base coat followed by two finishing coats”
Synonyms:
basal
basic
pertaining to or constituting a base or basis
2

n the most important or necessary part of something

Synonyms:
basis
Type of:
component, component part, constituent, moiety, part, portion
something determined in relation to something that includes it

n the fundamental assumptions from which something is begun or developed or calculated or explained

Synonyms:
basis, cornerstone, foundation, fundament, groundwork
Types:
meat and potatoes
the fundamental part
Type of:
assumption, supposal, supposition
a hypothesis that is taken for granted

n the place where you are stationed and from which missions start and end

Synonyms:
home
Type of:
location
a point or extent in space

n installation from which a military force initiates operations

“the attack wiped out our forward bases
Synonyms:
base of operations
Types:
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air base, air station
a base for military aircraft
army base
a large base of operations for an army
firebase
an artillery base to support advancing troops
navy base
base of operations for a naval fleet
rocket base
a military base for rocket missiles
Type of:
military installation
any facility servicing military forces

n the stock of basic facilities and capital equipment needed for the functioning of a country or area

“the industrial base of Japan”
Synonyms:
infrastructure
Type of:
fund, stock, store
a supply of something available for future use

n (linguistics) the form of a word after all affixes are removed

Synonyms:
radical, root, root word, stem, theme
Type of:
descriptor, form, signifier, word form
the phonological or orthographic sound or appearance of a word that can be used to describe or identify something

n the principal ingredient of a mixture

“glycerinated gelatin is used as a base for many ointments”
“he told the painter that he wanted a yellow base with just a hint of green”
“everything she cooked seemed to have rice as the base
Type of:
ingredient
a component of a mixture or compound

v use as a basis for; found on

base a claim on some observation”
Synonyms:
establish, found, ground
Types:
build
found or ground

v situate as a center of operations

“we will base this project in the new lab”
Type of:
locate, situate
determine or indicate the place, site, or limits of, as if by an instrument or by a survey
3

n a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)

Synonyms:
nucleotide
Types:
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base pair
one of the pairs of chemical bases joined by hydrogen bonds that connect the complementary strands of a DNA molecule or of an RNA molecule that has two strands; the base pairs are adenine with thymine and guanine with cytosine in DNA and adenine with uracil and guanine with cytosine in RNA
AMP, adenosine monophosphate, adenylic acid
a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP
ADP, adenosine diphosphate
an ester of adenosine that is converted to ATP for energy storage
ATP, adenosine triphosphate
a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions
A, deoxyadenosine monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
C, deoxycytidine monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
G, deoxyguanosine monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
T, deoxythymidine monophosphate
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
muton
the smallest unit of DNA where a mutation can occur
U, uracil
a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
Type of:
ester
formed by reaction between an acid and an alcohol with elimination of water

n any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water

bases include oxides and hydroxides of metals and ammonia”
Synonyms:
alkali
Types:
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pyridine
a toxic colorless flammable liquid organic base with a disagreeable odor; usually derived from coal
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
glyoxaline, imidazole, iminazole
an organic base C3H4N2; a histamine inhibitor
cyanuramide, melamine
a white crystalline organic base; used mainly in making melamine resins
pyrimidine
any of several basic compounds derived from pyrimidine
A, adenine
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
C, cytosine
a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
G, guanine
a purine base found in DNA and RNA; pairs with cytosine
T, thymine
a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
triphosphopyridine
a pyridine ring with three phosphorus groups
Type of:
chemical compound, compound
(chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
4

n (numeration system) the positive integer that is equivalent to one in the next higher counting place

Synonyms:
radix
Type of:
number
a concept of quantity involving zero and units
5

n a place that the runner must touch before scoring

Synonyms:
bag
Types:
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first base
the base that must be touched first by a base runner in baseball
home, home base, home plate, plate
(baseball) base consisting of a rubber slab where the batter stands; it must be touched by a base runner in order to score
second base
the base that must be touched second by a base runner in baseball
third, third base
the base that must be touched third by a base runner in baseball
Type of:
baseball equipment
equipment used in playing baseball
6

n (electronics) the part of a transistor that separates the emitter from the collector

Type of:
electrode
a conductor used to make electrical contact with some part of a circuit
7

v use (purified cocaine) by burning it and inhaling the fumes

Synonyms:
free-base
Type of:
do drugs, drug
use recreational drugs
8

adj of low birth or station (`base' is archaic in this sense)

Synonyms:
baseborn, humble, lowly
lowborn
of humble birth or origins

adj debased; not genuine

“an attempt to eliminate the base coinage”
Synonyms:
counterfeit, imitative
not genuine; imitating something superior

adj illegitimate

Synonyms:
baseborn
illegitimate
of marriages and offspring; not recognized as lawful

adj not adhering to ethical or moral principles

base and unpatriotic motives”
“a base, degrading way of life”
Synonyms:
immoral
wrong
contrary to conscience or morality or law

adj having or showing an ignoble lack of honor or morality

“"that liberal obedience without which your army would be a base rabble"- Edmund Burke”
Synonyms:
mean, meanspirited
ignoble
completely lacking nobility in character or quality or purpose

adj (used of metals) consisting of or alloyed with inferior metal

base coins of aluminum”
“a base metal”
Synonyms:
inferior
of low or inferior quality