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Parent Categories

entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

object, physical object go
a tangible and visible entity

whole, unit go
an assemblage of parts that is regarded as a single entity

living thing, animate thing go
a living (or once living) entity

organism, being go
a living thing that has (or can develop) the ability to act or function independently

microorganism, micro-organism go
any organism of microscopic size

moneran, moneron go
organisms that typically reproduce by asexual budding or fission and whose nutritional mode is absorption or photosynthesis or chemosynthesis

eubacteria, eubacterium, true bacteria
a large group of bacteria having rigid cell walls

noun.animal

30 Subcategories

bacillus, B go
aerobic rod-shaped spore-producing bacterium
coccus, cocci go
any spherical or nearly spherical bacteria
coccobacillus go
a bacterial cell intermediate in morphology between a coccus and a bacillus
spirillum, spirilla go
any flagellated aerobic bacteria having a spirally twisted rodlike form
clostridium, clostridia go
spindle-shaped bacterial cell especially one swollen at the center by an endospore
botulinus, botulinum, Clostridium botulinum go
anaerobic bacterium producing botulin the toxin that causes botulism
clostridium perfringens go
anaerobic Gram-positive rod bacterium that produces epsilon toxin
cyanobacteria, blue-green algae go
predominantly photosynthetic prokaryotic organisms containing a blue pigment in addition to chlorophyll
phototrophic bacteria, phototropic bacteria go
green and purple bacteria
pseudomonad go
bacteria usually producing greenish fluorescent water-soluble pigment
xanthomonad go
bacteria producing yellow non-water-soluble pigments
nitric bacteria, nitrobacteria go
soil bacteria that convert nitrites to nitrates
nitrosobacteria, nitrous bacteria go
soil bacteria that oxidize ammonia to nitrites
thiobacillus go
small rod-shaped bacteria living in sewage or soil and oxidizing sulfur
spirillum go
spirally twisted elongate rodlike bacteria usually living in stagnant water
vibrio, vibrion go
curved rodlike motile bacterium
corynebacterium go
any species of the genus Corynebacterium
listeria go
any species of the genus Listeria
enteric bacteria, enterobacteria, enterics, entric go
rod-shaped Gram-negative bacteria
endospore-forming bacteria go
a group of true bacteria
rickettsia go
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
chlamydia go
coccoid rickettsia infesting birds and mammals
mycoplasma go
any of a group of small parasitic bacteria that lack cell walls and can survive without oxygen
actinomycete go
any bacteria (some of which are pathogenic for humans and animals) belonging to the order Actinomycetales
actinomyces go
soil-inhabiting saprophytes and disease-producing plant and animal parasites
mycobacteria, mycobacterium go
rod-shaped bacteria some saprophytic or causing diseases
myxobacteria, myxobacterium, myxobacter, gliding bacteria, slime bacteria go
bacteria that form colonies in self-produced slime
lactobacillus go
a Gram-positive rod-shaped bacterium that produces lactic acid (especially in milk)
streptococcus, streptococci, strep go
spherical Gram-positive bacteria occurring in pairs or chains
spirochete, spirochaete go
parasitic or free-living bacteria