Organism
microorganism
mi·cro·or·gan·ism [ mahy-kroh-awr-guh-niz-uhm ]
Definitions related to microorganism:
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(microbe) A microorganism.Harvard Dictionary of Health TermsHarvard Medical Publishing, 2011
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(microbe) A microscopic organism capable of causing disease in humans, plants, or animals. Most microbes are classified into one of four major groups: bacteria, viruses, fungi, or protozoa.NICHD Pediatric TerminologyU.S. National Cancer Institute, 2021
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A microscopic organism. The term microorganism may refer to a prokaryote or eukaryote, and may be a unicellular or multicellular organism. All taxonomic kingdoms contain microorganisms.NCI ThesaurusU.S. National Cancer Institute, 2021
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All single celled living organisms including protozoa, bacteria, yeast, viruses, etc.NCI Health Level 7 VocabularyU.S. National Cancer Institute, 2018
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An organism that can be seen only through a microscope. Microorganisms include bacteria, protozoa, algae, and fungi. Although viruses are not considered living organisms, they are sometimes classified as microorganisms.NCI Dictionary of Cancer TermsU.S. National Cancer Institute, 2021
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Organism of microscopic or ultramicroscopic size.CRISP ThesaurusNational Institutes of Health, 2006
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