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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

bacteria, bacterium
(microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission

noun.animal

14 Subcategories

acidophil, acidophile go
an organism that thrives in a relatively acid environment
probiotic, probiotic bacterium, probiotic microflora, probiotic flora go
a beneficial bacterium found in the intestinal tract of healthy mammals
bacteroid go
a rodlike bacterium (especially any of the rod-shaped or branched bacteria in the root nodules of nitrogen-fixing plants)
eubacteria, eubacterium, true bacteria go
a large group of bacteria having rigid cell walls
Calymmatobacterium, genus Calymmatobacterium go
a genus of bacterial rods containing only the one species that causes granuloma inguinale
Francisella, genus Francisella go
a genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans)
gonococcus, Neisseria gonorrhoeae go
the pus-producing bacterium that causes gonorrhea
Legionella pneumophilia, legionella go
the motile aerobic rod-shaped Gram-negative bacterium that thrives in central heating and air conditioning systems and can cause Legionnaires' disease
nitrobacterium go
any of the bacteria in the soil that take part in the nitrogen cycle
penicillin-resistant bacteria go
bacteria that are unaffected by penicillin
pus-forming bacteria go
bacteria that produce pus
rod go
any rod-shaped bacterium
diplococcus go
Gram-positive bacteria usually occurring in pairs
superbug go
a strain of bacteria that is resistant to all antibiotics