extine.
/ek-steen, -stahyn/US // ˈɛk stin, -staɪn //UK // (ˈɛkstɪn, -tiːn, -taɪn) //
延伸,熄灭,灭绝,灭虫
Definitions
n.noun · 名词
- 1.
Botany.
- ›exine.
Examples
The pollen grain bears numerous spines, the dark spots indicate thin places in the extine.
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