| 释义 | family CrotalidaeThesaurus
 | Noun | 1. | family Crotalidae - New World vipers: pit vipersCrotalidaereptile family - a family of reptilesOphidia, Serpentes, suborder Ophidia, suborder Serpentes - snakespit viper - New World vipers with hollow fangs and a heat-sensitive pit on each side of the headAgkistrodon, Ancistrodon, genus Agkistrodon, genus Ancistrodon - copperheadsrattler, rattlesnake - pit viper with horny segments at the end of the tail that rattle when shakenCrotalus, genus Crotalus - large rattlesnakes; seldom bite unless startled or pursuing preygenus Sistrurus, Sistrurus - pygmy rattlesnakesBothrops, genus Bothrops - fer-de-lance | 
 family Crotalidae
 Synonyms for family Crotalidaenoun New World vipers: pit vipersSynonymsRelated Wordsreptile familyOphidiaSerpentessuborder Ophidiasuborder Serpentespit viperAgkistrodonAncistrodongenus Agkistrodongenus AncistrodonrattlerrattlesnakeCrotalusgenus Crotalusgenus SistrurusSistrurusBothropsgenus Bothrops
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