from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Capable of maintaining a relatively constant body temperature independent of the surrounding environment.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of birds and mammals; having constant and relatively high body temperature


from Wiktionary, Creative Commons Attribution/Share-Alike License

home- +‎ -o- +‎ -therm +‎ -ic, from the Ancient Greek: ὅμοιος (homoios, "of like kind”, “similar") in conjunction with θέρμη (thermē, "heat").


  • Moreover, they are truly homeothermic, requiring maintenance of a constant internal body temperature that is considerably above environmental temperature.

    Climate change and reindeer nomadism in Finnmark, Norway

  • While hibernation during the winter is found in a few arctic mammals such as the Arctic ground squirrel (Spermophilus parryii), most homeothermic animals are active throughout the year.

    General characteristics of arctic species and their adaptations in the context of changes in climate and ultraviolet-B radiation levels

  • Reptiles are poikilothermic, which means that they can not regulate heat internally (as opposed to birds and mammals which are homeothermic).


  • One then makes an empirical calibration of running speed with temperature using some human runners, and goes on to construct a global temperature proxy by timing groups of wild-type human runners without knowing their nutritional status, their health profile, their homeothermic capacity or ability to sweat, their susceptibility to heat stroke, or the twitch rate of their muscles.

    Treydte, Moberg, Soon and Baliunas « Climate Audit

  • A large one, homeothermic, to judge from the infrared, holding still a short ways off.

    The Queen of Air and Darkness

  • Theirs was a high homeothermic metabolism, with corresponding energy demands.

    A Circus of Hells

  • He's homeothermic; his females give live birth and nurse their young.

    Ensign Flandry

  • Being homeothermic, and living on a planet whose slight axial tilt makes for less temperature variation than on Earth, Jovians rarely had any practical need to dress.

    Three Worlds To Conquer

  • At about the same time, they become homeostatic and homeothermic, as mammals are.

    A Case Of Conscience

  • As much as the presence of fur-shedding, homeothermic mammals unnerved him, he almost wished the Sst’rfleeters that Captain Krassrr had chased away had chosen to challenge Krassrr’s highly questionable plans.

    Star Trek: Typhon Pact: Seize the Fire


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