- any of numerous Old World lizards of the family Chamaeleontidae, characterized by the ability to change the color of their skin, very slow locomotion, and a projectile tongue.
- any of several American lizards capable of changing the color of the skin, especially Anolis carolinensis(American chameleon ), of the southeastern U.S.
- a changeable, fickle, or inconstant person.
- Chamaeleon.
- any lizard of the family Chamaeleontidae of Africa and Madagascar, having long slender legs, a prehensile tail and tongue, and the ability to change colour
- a changeable or fickle person
