chameleon: Meaning and Definition of

cha•me•le•on

1. 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.
2. any of several American lizards capable of changing the color of the skin, esp. Anolis carolinensisof the southeastern U.S.
3. a changeable, fickle, or inconstant person.
4. (cap.)Chamaeleon.