perisperm

noun

peri·​sperm
ˈperəˌspərm
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
perispermal
¦⸗⸗¦spərməl
adjective
or perispermic
-mik

Word History

Etymology

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

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Cite this Entry

“Perisperm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/perisperm. Accessed 26 Feb. 2024.

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