Gila monster \Gi"la mon"ster\ (Zo["o]l.)
A large tuberculated lizard ({Heloderma suspectum}) native of
the dry plains of Arizona, New Mexico, etc. It is the only
lizard known to have venomous teeth.
Heloderma suspectum
n : large orange and black lizard of southwestern United States;
not dangerous unless molested [syn: {Gila monster}]