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Related to poikilothermia: Poikilothermism


An organism, such as a fish or reptile, having a body temperature that varies with the temperature of its surroundings.

[Greek poikilos, spotted, various; see peig- in Indo-European roots + -therm.]

poi′ki·lo·ther′mi·a (-thûr′mē-ə), poi′ki·lo·ther′my (-thûr′mē) n.
poi′ki·lo·ther′mic (-mĭk) adj.


(Animals) an organism with poikilothermic qualities
(Zoology) a variant form of poikilothermic
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.poikilotherm - an animal whose body temperature varies with the temperature of its surroundings; any animal except birds and mammals
animal, animate being, beast, creature, fauna, brute - a living organism characterized by voluntary movement
References in periodicals archive ?
These include the presence of any one or more of the following 6 'Ps': pain, paraesthesia (or anaesthesia), paresis (or paralysis), pallor, pulselessness, and poikilothermia ('perishing with the cold').
The first is the well-known poikilothermia, often called an "environmental fever," that also relates to hypothermia from prolonged cold exposure.
Poikilothermia, marked by significant impairment of mechanisms for heat dissipation, may occur in a variety of disorders.