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any of numerous pit vipers, venomous snakes of North America of the genera Crotalus and Sistrurus. See also snakebite.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A member of the crotalid genera Crotalus and Sistrurus, characterized by possession of cuticular warning rattles at the tip of the tail.
Farlex Partner Medical Dictionary © Farlex 2012
Any of various venomous pit vipers of the genera Crotalus and Sistrurus of the Americas, having at the end of the tail a series of loosely attached, horny segments that can be vibrated to produce a rattling or buzzing sound.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
rattlesnakeA pit viper of the genera Crotalus or Sistrurus, primarily of the southern Northern hemisphere, which has a characteristic tail that produces a rattling sound when its owner is disturbed
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.