proostracum - Meaning and Examples

Meaning of 'proostracum' (Webster Dictionary)

1 . Proostracum

[ n.]

- The anterior prolongation of the guard of the phragmocone of belemnites and allied fossil cephalopods, whether horny or calcareous. See Illust. of Phragmocone.

Nearby Words:

pro pro rata pro thyalosoma pro- proa proach proant proatlas probabiliorism probabiliorist

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