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perisperm

noun peri·sperm \ ˈperəˌspərm \

Definition of perisperm

1 : nutritive tissue of a seed derived from the nucellus and deposited external to the embryo sac —distinguished from endosperm
2 : nutritive tissue of a seed that includes both endosperm and perisperm —not used technically
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perispermal

or perispermic \-mik\ adjective

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Origin and Etymology of perisperm

French périsperme, from péri- peri- + -sperme -sperm

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