WordNet: pit viper

New World vipers with hollow fangs and a heat-sensitive pit on each side of the head

• hypernym viper

• hyponym Agkistrodon contortrix, copperhead

• hyponym Agkistrodon piscivorus, cottonmouth, cottonmouth moccasin, water moccasin

• hyponym rattler, rattlesnake

• hyponym Bothrops atrops, fer-de-lance

• member holonym Crotalidae, family Crotalidae

pit viper

• (suomi) kalkkarokäärme (synonyymi)