basilisk

• (classical mythology) a serpent (or lizard or dragon) able to kill with its breath or glance
• ancient brass cannon
• small crested arboreal lizard able to run on its hind legs
• 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
• A lizard of the genus Basiliscus, belonging to the family Iguanidae
• A large piece of ordnance, so called from its supposed resemblance to the serpent of that name, or from its size

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