Simple Definition of Gila monster
: a large orange and black poisonous lizard of the southwestern U.S.
Full Definition of Gila monster
: a large orange and black venomous lizard (Heloderma suspectum) of the southwestern United States; also : a related lizard (H. horridum) of Mexico
Medical Definition of Gila monster
: a large orange and black venomous lizard of the genus Heloderma (H. suspectum) of the southwestern United States
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