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Dictionary

pter•o•saur

Pronunciation: (ter'u-sôr"), [key]
—n.
any flying reptile of the extinct order Pterosauria, from the Jurassic and Cretaceous periods, having the outside digit of the forelimb greatly elongated and supporting a wing membrane.

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

pteropodium

-pterous

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