Definitions
1.NounA (typically scaly and egg-laying) cold-blooded vertebrate tetrapod animal, of the class Reptilia (excluding birds), such as a lizard, turtle, snake, crocodile, alligator, etc. .mw-parser-output .defdate{font-size:smaller}
2.NounAny member of the class Reptilia, including birds.
3.NounAny creeping or crawling animal, one that moves along close to the ground on its belly or on short legs, such as a lizard, snake, salamander, frog, toad, or scorpion.
4.NounAn animal belonging to either the class Reptilia or the class Amphibia.
5.NounAn ectothermic, scaly animal, whether sauropsid or synapsid, of the clade Amniota."Prior to the 1990s, the non-mammalian synapsids were considered true reptiles.; mammal-like reptile"
6.NounAn abject, grovelling, loathsome or repulsive person.
7.AdjectiveCreeping; moving on the belly, or by means of small and short legs.
8.AdjectiveGrovelling; low; vulgar."a reptile race or crew reptile vices"