'Microorganism' definitions:
Definition of 'microorganism'
From: WordNet
noun
Any organism of microscopic size [syn: microorganism, micro-organism]
Definition of 'Microorganism'
From: GCIDE
- Microorganism \Mi`cro*or"gan*ism\, n. [Micro- + organism.] (Biol.) Any microscopic form of life; a form of life too small to be seen by the naked eye; -- particularly applied to bacteria, protozoa, yeasts, and similar organisms, esp. such are supposed to cause infectious diseases. [1913 Webster]
Synonyms of 'microorganism'
From: Moby Thesaurus
- adenovirus,
- aerobe,
- aerobic bacteria,
- aerobic organism,
- amoeba,
- anaerobe,
- anaerobic bacteria,
- anaerobic organism,
- animalcule,
- autotrophic organism,
- bacillus,
- bacteria,
- bacterium,
- being,
- bug,
- coccus,
- colon bacillus,
- creature,
- crumb,
- diatom,
- disease-producing microorganism,
- dot,
- drop,
- droplet,
- dyad,
- echovirus,
- enterovirus,
- Euglena,
- filterable virus,
- flagellate,
- fleck,
- flyspeck,
- fungus,
- genetic individual,
- germ,
- gnat,
- grain,
- gram-negative bacteria,
- gram-positive bacteria,
- heterotrophic organism,
- individual,
- iota,
- jot,
- living being,
- living thing,
- microbe,
- microspore,
- microzoa,
- midge,
- minim,
- minutia,
- minutiae,
- mite,
- mold,
- monad,
- morphological individual,
- mote,
- nematode,
- nonfilterable virus,
- ont,
- organic being,
- organism,
- organization,
- paramecium,
- particle,
- pathogen,
- physiological individual,
- picornavirus,
- pinhead,
- pinpoint,
- point,
- protozoa,
- protozoon,
- reovirus,
- rhinovirus,
- rickettsia,
- salmonella,
- saprophyte,
- scrap,
- snip,
- snippet,
- speck,
- spirillum,
- spirochete,
- spore,
- sporozoon,
- staphylococcus,
- streptococcus,
- tetrad,
- tittle,
- triad,
- trypanosome,
- vanishing point,
- vibrio,
- virus,
- volvox,
- vorticellum,
- zooid,
- zoon,
- zoospore