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Want to find out what does the word trigonia mean? We gathered all the possible definitions of the word trigonia on our website. Our definition dictionary is updated all the time with new definitions and is ready to help you.


Part of speech: Noun

In geol., a bivalve of the Oolite and Chalk- so called from its three- cornered shape, and thick, tuberculated, ribbed shell- the horse- beads of the Portland quarrymen.

Usage examples "trigonia":