reptilian

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms
adjective of or relating to the class Reptilia

From reptile + -ian, replacing earlier reptilious and adjectival reptile.

"Then you know the peculiar reptilian odor which such a place gives off. — Astounding Stories of Super-Science January 1930, Unknown
Their slow reptilian natures cared nothing for wounds, and the springs of their lives, with no special brain center but scattered throughout their spinal cords, could not be tapped by any modern weapons. — The Lost World, Arthur Conan Doyle

reptile

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