pit viper Hear it!

pit viper definition

pit viper

any of a subfamily (Crotalinae) of poisonous vipers with a prominent, heat-sensitive pit on each side of the head, as the rattlesnake or copperhead

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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