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单词 episperm
释义

epispermn.

/ˈɛpɪspəːm/
Etymology: < Greek ἐπί upon + σπέρμα seed: see epi- prefix and sperm n.
Botany.
The exterior covering of a seed.
ΚΠ
1819 J. Lindley tr. L.-C. Richard Observ. Struct. Fruits & Seeds 17 The covering or integument peculiar to the seed being the most exterior of its constituent parts, I give it the name of Episperm.
1861 R. Bentley Man. Bot. i. iv. 337 The terms most frequently used, are testa or episperm for the outer coat.

Derivatives

epiˈspermic adj.
ΚΠ
1819 J. Lindley tr. L.-C. Richard Observ. Struct. Fruits & Seeds 32 If..the entire kernel..is immediately covered over by the episperm, it is called epispermic.
This entry has not yet been fully updated (first published 1933; most recently modified version published online June 2018).
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n.1819
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更新时间:2025/2/3 11:33:11