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Dictionary


am•mo•noid



Pronunciation: (am'u-noid"), [key]
n.
any cephalopod mollusk of the extinct order Ammonoidea, from the Devonian to the Cretaceous periods, having a coiled, chambered shell.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

ammonoammonolysis
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