- chameleon⇄adj. chameleonlike.
- Chameleon⇄Chameleon, noun, genitiveChameleontis.
a southern constellation near Argo. - chameleon⇄chameleon, noun.
1a. a small lizard of the Old World that can change the color of its skin to blend with the surroundings. The chameleon has a long, grasping tail, bulging eyes that move separately, and a long, sticky tongue for catching insects.