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Word of the Day Tuesday, June 9, 2026

perisperm

/ˈpɛrɪs.pər/ noun · British & US
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What does perisperm mean?

noun

A perisperm is a remnant of the nucellus, the tissue surrounding the ovule in a plant, that remains attached to the seed after fertilization. It is a type of endosperm that is formed before fertilization.

Example

"The perisperm of the coconut palm is a hard, stony structure that surrounds the embryo."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for perisperm

Rhymes with perisperm

Etymologically related