1. cold-blooded scaly vertebrate: an air-breathing cold-blooded egg-laying vertebrate with an outer covering of scales or plates and a bony skeleton, e.g. the crocodile, tortoise, snake, or lizard. Class Reptilia.
2. offensive term: an offensive term that deliberately insults somebody whose behavior or character is regarded as suspicious, untrustworthy, or sickeningly ingratiating
(
insult
)
adjective
Definition:
being reptile: belonging to the class of reptiles
[14th century. Via French< late Latin reptilis "creeping" < Latin rept-, past participle of repere "creep"]