What is "episperm"

Episperm \Ep"i*sperm\, n. [Pref. epi- + Gr. ? seed: cf. F. ['e]pisperme.] (Bot.) The skin or coat of a seed, especially the outer coat. See Testa.

n. (context botany English) The outer, protective layer of the seed of a flowering plant

n. protective outer layer of seeds of flowering plants [syn: testa, seed coat]