- any of several New World pit vipers of the genera Crotalus and Sistrurus, having a rattle composed of a series of horny, interlocking elements at the end of the tail.
Origin of rattlesnake
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for rattlesnakes
Next thing they'll be asking about mountain lions and rattlesnakes.Her Father's Daughter
"It's a likely-looking place for rattlesnakes," Bob remarked.The Fiery Totem
Handling glanders was almost as dangerous as either the bullets or the rattlesnakes.Policing the Plains
We knew that rattlesnakes abounded in this region as we had seen them on our way.Old Rail Fence Corners
If your back garden is infested with rattlesnakes you should keep pigs.
- any of the venomous New World snakes constituting the genera Crotalus and Sistrurus, such as C. horridus (black or timber rattlesnake): family Crotalidae (pit vipers). They have a series of loose horny segments on the tail that are vibrated to produce a buzzing or whirring sound
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for rattlesnakes
Online Etymology Dictionary, © 2010 Douglas Harper