Ectothermic

adj

Definitions

Adjective
  1. 1
    Of or relating to an ectotherm; having a body temperature that varies depending on the outside temperature.
Adjective
  1. 1
    of animals except birds and mammals; having body temperature that varies with the environment wordnet

Etymology

From ectotherm + -ic.

Next best steps

Mini challenge

Unscramble this word: ectothermic