(classical mythology) a serpent (or lizard or dragon) able to kill with its breath or glance
source: WordNet 3.0
ancient brass cannon
source: WordNet 3.0
small crested arboreal lizard able to run on its hind legs; of tropical America
source: WordNet 3.0
A fabulous serpent, or dragon. The ancients alleged that its hissing would drive away all other serpents, and that its breath, and even its look, was fatal. See Cockatrice.
