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- (Received Pronunciation) IPA(key): /ˌmaɪ.kɹəʊˈɔː.ɡən.ɪ.zəm̩/
- (US) IPA(key): /ˌmaɪ.kɹoʊˈɔːɹ.ɡən.ɪ.zəm̩/
microorganism (plural microorganisms)
- (microbiology) An organism that is too small to be seen by the unaided eye, especially a single-celled organism, such as a bacterium.
- The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen.
an organism too small to be seen by unaided eye
microorganism n (plural microorganisme)