a small lizard (= a type of reptile) that can change colour according to what is around or near it 避役；变色蜥蜴；变色龙 - (often disapproving)
a person who changes their behaviour or opinions according to the situation 见风使舵的人；善变的人
Word OriginMiddle English: via Latin chamaeleon from Greek khamaileōn, from khamai ‘on the ground’ + leōn ‘lion’.