- basilisk - (classical mythology) a serpent (or lizard or dragon) able to kill with its breath or glance
--1 is a kind of mythical monster, mythical creature
- basilisk - ancient brass cannon
--2 is a kind of cannon
- basilisk - small crested arboreal lizard able to run on its hind legs; of tropical America
--3 is a kind of iguanid, iguanid lizard
--3 is a member of Basiliscus, genus Basiliscus - basilisk - ancient brass cannon