ammonoid.
/am-uh-noid/US // ˈæm əˌnɔɪd //
瓣膜类动物,弹药状物,弹药状体,弹药体
Definitions
n.noun · 名词
- 1.
- ›any cephalopod mollusk of the extinct order Ammonoidea, from the Devonian to the Cretaceous periods, having a coiled, chambered shell.
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瓣膜类动物,弹药状物,弹药状体,弹药体