Definition of MICROORGANISM

microorganism

Plural: microorganisms

Noun

  • any organism of microscopic size
  • An organism that is too small to be seen by the unaided eye; especially, a single-celled organism, such as a bacterium.

Examples

  • "The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen."

Origin / Etymology

From micro- + organism.

Synonyms

micro-organism, microbe, microorganism

Scrabble Score: 0

microorganism is not valid in Scrabble (US) TWL Dictionary
microorganism is not valid in Scrabble (MW) Merriam-Webster Dictionary
microorganism is not valid in International Collins CSW Dictionary

Words With Friends Score: 0

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