belemnite
英[be'ləmnaɪt]
美[be'ləmnaɪt]
- n. 箭石
详细释义
- 【古生物】箭石（乌贼的化石）
n. (名词)
英英释义
Noun:
-
a conical calcareous fossil tapering to a point at one end and with a conical cavity at the other end containing (when unbroken) a small chambered phragmocone from the shell of any of numerous extinct cephalopods of the family Belemnitidae
双语例句
- Any of various mineral concretions, such as a belemnite, formerly supposed to be thunderbolts.
很多矿物结核如箭石过去被认为是雷石。
用作名词 (n.)
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