heterogamy

noun
het·​er·​og·​a·​my | \ˌhe-tə-ˈrä-gə-mē \

Definition of heterogamy 

1 : sexual reproduction involving fusion of unlike gametes often differing in size, structure, and physiology

2 : the condition of reproducing by heterogamy

First Known Use of heterogamy

circa 1894, in the meaning defined at sense 1

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The first known use of heterogamy was circa 1894

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More Definitions for heterogamy

heterogamy

noun
het·​er·​og·​a·​my | \-mē \
plural heterogamies

Medical Definition of heterogamy 

1 : sexual reproduction involving fusion of unlike gametes often differing in size, structure, and physiology

2 : the condition of reproducing by heterogamy

More from Merriam-Webster on heterogamy

Britannica.com: Encyclopedia article about heterogamy

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