rattlesnake
rat.tle.snake \'rat-*l-.sna-k\ n : any of various thick-bodied American venomous snakes (family Crotalidae, genera Sistrurus and Crotalus) with horny interlocking joints at the end of the tail that make a sharp rattling sound when shaken
Webster's English Dictionaryrat.tle.snake \'rat-*l-.sna-k\ n : any of various thick-bodied American venomous snakes (family Crotalidae, genera Sistrurus and Crotalus) with horny interlocking joints at the end of the tail that make a sharp rattling sound when shaken