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Friday, August 8th, 2025
the Week of Proper 13 / Ordinary 18
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Bible Dictionaries
Proostracum

Webster's Dictionary

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

Bibliography Information
Webster, Noah. Entry for 'Proostracum'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/proostracum.html. 1828.
 
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