proostracum

Here is the meaning of the word, proostracum

This word is NOT in the TWL06 Dictionary
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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.

Words within proostracum

9 letter words: 4 results
aproctous
cormoraut
macrotous
motorcars
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