英语释义
1. any of several American pit vipers (genera Crotalus and Sistrurus) that have horny interlocking joints at the end of the tail which make a sharp rattling sound when shaken
2. a poisonous American snake with a group of hard, loose pieces (called scales) at the end of its tail that it shakes to make a noise
3. a poisonous American snake with a rattle at the end of its tail
4. any of the American pit vipers that have a series of horny interlocking joints at the end of the tail which make a sharp rattling sound when vibrated and that comprise the genera Sistrurus and Crotalus — see diamondback rattlesnake, tiger rattlesnake, timber rattlesnake