“spermoderm”的英文意思_释义_用法

单词

spermoderm

释义

spermoderm Bot.|ˈspɜːməʊdəm|
[ad. mod.L. spermoderma, -dermis (De Candolle) or F. spermoderme: see prec. and derm.]
The combined outer and inner integuments of a seed, or the outer of these by itself.
1841Penny Cycl. XXI. 184/1 The external coverings of the seed..are called the testa, perisperm, or spermoderm.1861Bentley Man. Bot. 337 Some writers..use the word testa in a general sense for the two integuments, and call the external one spermoderm.1864New Syd. Soc. Year-bk. Med. & Surg. for 1863 427 The spermoderm of the bean..is also poisonous.

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