pit viper
US /ˈpɪt ˌvaɪ.pər/
UK /ˈpɪt ˌvaɪ.pər/
1.
a venomous snake of the family Viperidae, characterized by a heat-sensing pit organ located between the eye and the nostril on both sides of the head
:
•
The scientist carefully studied the behavior of the pit viper.
•
Many species of pit vipers are found in the Americas.