microorganism

noun mi·cro·or·gan·ism \ -ˈȯr-gə-ˌni-zəm \
|Updated on: 15 Jun 2018

Definition of microorganism

: an organism (such as a bacterium or protozoan) of microscopic or ultramicroscopic size

Recent Examples of microorganism from the Web

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Origin and Etymology of microorganism

International Scientific Vocabulary


MICROORGANISM Defined for English Language Learners

microorganism

Definition of microorganism for English Language Learners

  • biology : an extremely small living thing that can only be seen with a microscope


MICROORGANISM Defined for Kids

microorganism

noun mi·cro·or·gan·ism \ ˌmī-krō-ˈȯr-gə-ˌni-zəm \

Definition of microorganism for Students

: a living thing (as a bacterium) that can only be seen with a microscope

Medical Dictionary

microorganism

noun mi·cro·or·gan·ism \ -ˈȯr-gə-ˌniz-əm \

medical Definition of microorganism

: an organism of microscopic or ultramicroscopic size


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