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belemnite

Belemnite is a 9 letter word which starts with the letter B and ends with the letter E for which we found 1 definitions.

Definition
(n.) A conical calcareous fossil tapering to a point at the lower extremity with a conical cavity at the other end where it is ordinarily broken; but when perfect it contains a small chambered cone called the phragmocone prolonged on one side into a delicate concave blade; the thunderstone. It is the internal shell of a cephalopod related to the sepia and belonging to an extinct family. The belemnites are found in rocks of the Jurassic and Cretaceous ages.
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