Definition of perisperm in English:

perisperm

Line breaks: peri|sperm
Pronunciation: /ˈpɛrɪspəːm/

Entry from British & World English dictionary

noun

Botany
(In some seeds) a mass of nutritive material outside the embryo sac.

Origin

early 19th century: from peri- 'around' + Greek sperma 'seed'.

Definition of perisperm in:

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adjective
rich in, covered with, or producing oil; oily