co·bra 
(kōbrə)
(kōbrə)n.
1. Any of various venomous elapid snakes, especially of the genus Naja, that are native to Asia and Africa and are capable of expanding the skin of the neck to form a flattened hood.
2. Leather made from the skin of one of these snakes.
[Short for Portuguese cobra (de capelo), snake (with a hood) : cobra, snake (from Old Portuguese coobra, from Vulgar Latin *colobra, variant of Latin colubra, of unknown origin) + de, of + capelo, hood.]