seed coat

US /ˈsiːd koʊt/
UK /ˈsiːd koʊt/
"seed coat" picture
1.

種皮

the outer protective layer of a seed

:
The seed coat protects the embryo inside.
種皮保護著裡面的胚胎。
Some seeds need their seed coat to be scarified for germination.
有些種子需要對其種皮進行劃傷才能發芽。