microorganism

English

Alternative forms

Etymology

micro- + organism

Pronunciation

  • (Received Pronunciation) IPA(key): /ˌmaɪ.kɹəʊˈɔː.ɡəˌnɪz.m̩/
  • (US) IPA(key): /ˌmaɪ.kɹoʊˈɔɹ.ɡəˌnɪz.m̩/
  • (file)

Noun

microorganism (plural microorganisms)

  1. (microbiology) An organism that is too small to be seen by the unaided eye; especially, a single-celled organism, such as a bacterium.
    Synonym: microbe
    The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen.

Usage notes

  • Whether viruses are alive, and thus whether they are microorganisms (microbes), is a matter of variable ontology; the semantic field of the word microorganism is often taken to include viruses in casual or broad terms, but not always in precise terms.
  • GPO manual recommends using a hyphen to avoid doubling a vowel except after short prefixes.[1] However, microorganism is several times more common than micro-organism in print[2] and most dictionaries only have the spelling microorganism.

Translations

See also

References

  1. 6. Compounding Rules in U.S. Government Printing Office Style Manual, govinfo.gov
  2. (microorganism*0.2),micro-organism at Google Ngram Viewer

Further reading

Romanian

Etymology

Borrowed from French microorganisme.

Noun

microorganism n (plural microorganisme)

  1. microorganism

Declension

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