Definition of "homeothermic" []

• Capable of maintaining a relatively constant body temperature independent of the surrounding environment. (adjective)

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• "Moreover, they are truly homeothermic, requiring maintenance of a constant internal body temperature that is considerably above environmental temperature."
• "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."
• "Reptiles are poikilothermic, which means that they can not regulate heat internally (as opposed to birds and mammals which are homeothermic)."