an·​i·​mal·​cule | \ ˌa-nə-ˈmal-(ˌ)kyü(ə)l \
variants: or less commonly animalculum \ -​ˈmal-​kyə-​ləm \
plural animalcules also animalcula\ -​kyə-​lə \

Definition of animalcule 

: a minute usually microscopic organism

Examples of animalcule in a Sentence

Recent Examples on the Web

Van Leeuwenhoek estimated, correctly, that there were more animalcules swimming and creeping around in his mouth than there were people living in the Netherlands. Jonathan Weiner, New York Times, "Book Review Newsletter," 15 Aug. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'animalcule.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of animalcule

1662, in the meaning defined above

History and Etymology for animalcule

New Latin animalculum, diminutive of Latin animal

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The first known use of animalcule was in 1662

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More Definitions for animalcule


an·​i·​mal·​cule | \ ˌan-ə-ˈmal-(ˌ)kyü(ə)l \
variants: also animalculum \ -​ˈmal-​kyə-​ləm \
plural animalcules also animalcula\ -​kyə-​lə \

Medical Definition of animalcule 

: a minute usually microscopic organism

More from Merriam-Webster on animalcule

Nglish: Translation of animalcule for Spanish Speakers Encyclopedia article about animalcule

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a person who helps groups work together

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