true bacteria

Definitions of true bacteria
1

n a large group of bacteria having rigid cell walls; motile types have flagella

Synonyms:
eubacteria, eubacterium
Types:
show 61 types...
hide 61 types...
B, bacillus
aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
cocci, coccus
any spherical or nearly spherical bacteria
coccobacillus
a bacterial cell intermediate in morphology between a coccus and a bacillus; a very short bacillus
spirilla, spirillum
any flagellated aerobic bacteria having a spirally twisted rodlike form
clostridia, clostridium
spindle-shaped bacterial cell especially one swollen at the center by an endospore
Clostridium botulinum, botulinum, botulinus
anaerobic bacterium producing botulin the toxin that causes botulism
clostridium perfringens
anaerobic Gram-positive rod bacterium that produces epsilon toxin; can be used as a bioweapon
blue-green algae, cyanobacteria
predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll; occur singly or in colonies in diverse habitats; important as phytoplankton
phototrophic bacteria, phototropic bacteria
green and purple bacteria; energy for growth is derived from sunlight; carbon is derived from carbon dioxide or organic carbon
pseudomonad
bacteria usually producing greenish fluorescent water-soluble pigment; some pathogenic for plants and animals
xanthomonad
bacteria producing yellow non-water-soluble pigments; some pathogenic for plants
nitric bacteria, nitrobacteria
soil bacteria that convert nitrites to nitrates
nitrosobacteria, nitrous bacteria
soil bacteria that oxidize ammonia to nitrites
thiobacillus
small rod-shaped bacteria living in sewage or soil and oxidizing sulfur
spirillum
spirally twisted elongate rodlike bacteria usually living in stagnant water
vibrio, vibrion
curved rodlike motile bacterium
corynebacterium
any species of the genus Corynebacterium
listeria
any species of the genus Listeria
enteric bacteria, enterics, enterobacteria, entric
rod-shaped Gram-negative bacteria; most occur normally or pathogenically in intestines of humans and other animals
endospore-forming bacteria
a group of true bacteria
rickettsia
any of a group of very small rod-shaped bacteria that live in biting arthropods (as ticks and mites) and cause disease in vertebrate hosts; they cause typhus and other febrile diseases in human beings
chlamydia
coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract
mycoplasma
any of a group of small parasitic bacteria that lack cell walls and can survive without oxygen; can cause pneumonia and urinary tract infection
actinomycete
any bacteria (some of which are pathogenic for humans and animals) belonging to the order Actinomycetales
actinomyces
soil-inhabiting saprophytes and disease-producing plant and animal parasites
mycobacteria, mycobacterium
rod-shaped bacteria some saprophytic or causing diseases
gliding bacteria, myxobacter, myxobacteria, myxobacterium, slime bacteria
bacteria that form colonies in self-produced slime; inhabit moist soils or decaying plant matter or animal waste
lactobacillus
a Gram-positive rod-shaped bacterium that produces lactic acid (especially in milk)
strep, streptococci, streptococcus
spherical Gram-positive bacteria occurring in pairs or chains; cause e.g. scarlet fever and tonsillitis
spirochaete, spirochete
parasitic or free-living bacteria; many pathogenic to humans and other animals
Bacillus anthracis, anthrax bacillus
a species of bacillus that causes anthrax in humans and in animals (cattle and swine and sheep and rabbits and mice and guinea pigs); can be used a bioweapon
Bacillus globigii, Bacillus subtilis, grass bacillus, hay bacillus
a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics
Yersinia pestis
a bacillus bacterium that causes the plague; aerosolized bacteria can be used as a bioweapon
Brucella
an aerobic Gram-negative coccobacillus that causes brucellosis; can be used as a bioweapon
nostoc
found in moist places as rounded jellylike colonies
trichodesmium
large colonial bacterium common in tropical open-ocean waters; important in carbon and nitrogen fixation
purple bacteria
free-living Gram-negative pink to purplish-brown bacteria containing bacteriochlorophyll
Pseudomonas solanacearum, ring rot bacteria
causes brown rot in tomatoes and potatoes and tobacco etc
sulfur bacteria, sulphur bacteria, thiobacteria
any bacterium of the genus Thiobacillus
Spirillum minus, ratbite fever bacterium
a bacterium causing ratbite fever
Vibrio comma, comma bacillus
comma-shaped bacteria that cause Asiatic cholera
Vibrio fetus
bacteria that cause abortion in sheep
C. diphtheriae, Corynebacterium diphtheriae, Klebs-Loeffler bacillus
a species of bacterium that causes diphtheria
L. monocytogenes, Listeria monocytogenes
the type species of the genus Listeria; can cause meningitis, encephalitis, septicemia, endocarditis, abortion, abscesses, listeriosis
escherichia
a genus of enteric bacteria
klebsiella
a genus of nonmotile rod-shaped Gram-negative enterobacteria; some cause respiratory and other infections
salmonella
rod-shaped Gram-negative enterobacteria; cause typhoid fever and food poisoning; can be used as a bioweapon
shigella
rod-shaped Gram-negative enterobacteria; some are pathogenic for warm-blooded animals; can be used as a bioweapon
erwinia
rod-shaped motile bacteria that attack plants
C. psittaci, Chlamydia psittaci
bacteria responsible for the sexually transmitted disease chlamydia
C. trachomatis, Chlamydia trachomatis
bacteria responsible for the sexually transmitted diseases chlamydia and lymphogranuloma venereum
PPLO, pleuropneumonialike organism
a mycoplasma resistant to antibiotics that causes a kind of pneumonia in humans
streptomyces
aerobic bacteria (some of which produce the antibiotic streptomycin)
Mycobacterium tuberculosis, tubercle bacillus
cause of tuberculosis
Mycobacterium leprae, leprosy bacillus
cause of leprosy
staph, staphylococci, staphylococcus
spherical Gram-positive parasitic bacteria that tend to form irregular colonies; some cause boils or septicemia or infections
Lactobacillus acidophilus, acidophilus
a bacterium that is used to make yogurt and to supplement probiotics
treponema
spirochete that causes disease in humans (e.g. syphilis and yaws)
borrelia
cause of e.g. European and African relapsing fever
Borrelia burgdorferi, Lime disease spirochete
cause of Lyme disease; transmitted primarily by ticks of genus Ixodes
leptospira
important pathogens causing Weil's disease or canicola fever
Type of:
moneran, moneron
organisms that typically reproduce by asexual budding or fission and whose nutritional mode is absorption or photosynthesis or chemosynthesis
bacteria, bacterium
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered to be plants

Sign up, it's free!

Whether you're a student, an educator, or a lifelong learner, Vocabulary.com can put you on the path to systematic vocabulary improvement.