Dictionary

endosperm

noun en·do·sperm \ˈen-dō-ˌspərm\

Definition of ENDOSPERM

:  a nutritive tissue in seed plants formed within the embryo sac by division of the endosperm nucleus
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Origin of ENDOSPERM

French endosperme, from end- + Greek sperma seed — more at sperm
First Known Use: 1819

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