variants: or less commonly phragmacone \ˈfragməˌkōn \
plural -s

Definition of phragmocone 

: the thin conical chambered internal shell of a belemnite that is either straight or curved, is produced in front into a very thin process resembling a blade or leaf, and fits behind into a deep cavity in the anterior end of the guard

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Other Words from phragmocone

phragmoconic \¦⸗⸗¦känik \ adjective

History and Etymology for phragmocone

phragmocone International Scientific Vocabulary phragmo- (from Greek phragmos fence, fencing in, from phrassein, phrattein to enclose, fence in) + cone; phragmacone International Scientific Vocabulary phragma- (from Greek phragma fence) + cone

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