A vertebrate with three bones in the inner ear and one in the jaw.
An animal of the class Mammalia, characterized by being warm-blooded, having hair and producing milk with which to feed its young.
A snake, especially a large or dangerous one.
An obsolete wind instrument in the brass family, whose shape is suggestive of a snake (Wikipedia article).
A kind of firework with a serpentine motion.
A subtle, treacherous, malicious person.