The Collaborative International Dictionary
Spermoderm
Spermoderm \Sper"mo*derm\, n. [Spermo- + derm: cf. F.
spermoderme.] (Bot.)
The covering of a seed; -- sometimes limited to the outer
coat or testa.
--Lindley.
Wiktionary
spermoderm
n. (context botany English) A seed coat or testa.