- sidewinder, horned rattlesnake, Crotalus cerastes - small pale-colored desert rattlesnake of southwestern United States; body moves in an s-shaped curve
--1 is a kind of rattlesnake, rattler
--1 is a member of Crotalus, genus Crotalus - sidewinder - air-to-air missile with infrared homing device
--2 is a kind of missile