squamate 1. A reptile of the order that comprises all lizards and snakes and includes about 6,000 species. Order Squamata. 2. Having scales, or structures resembling scales, of the type that make up the covering of fish, reptiles, and some mammals. 3. Provided or covered with squamae or scales; scaly. Found on http://www.wordinfo.info/words/index/info/view_unit/2022/