- Mythical lethal reptile - 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. - 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.