: characterized by fusion of heterogamous gametes or of individuals that usually differ chiefly in size
anisogamous reproduction

Word History

First Known Use

1891, in the meaning defined above

Time Traveler
The first known use of anisogamous was in 1891

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Cite this Entry

“Anisogamous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/anisogamous. Accessed 7 Jul. 2026.

Medical Definition

anisogamous

adjective
: characterized by fusion of heterogamous gametes or of individuals that usually differ chiefly in size
anisogamous reproduction
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