Definition of perisperm in English:

Share this entry


Pronunciation: /ˈpɛrɪspəːm/


(In some seeds) a mass of nutritive material outside the embryo sac.
Example sentences
  • In cucumber, muskmelon, and other seeds, a thin perisperm-endosperm envelope completely encloses the embryo.
  • Scarification was accomplished by piercing the seed coat and scraping a small portion of the perisperm with a sterile dissecting needle.
  • The perisperm is present in abundance.


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

For editors and proofreaders

Line breaks: peri|sperm

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.