Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
the state of having a body temperature that varies with that of the environment.
1. the ability of organisms to adapt themselves to variations in the temperature of the environment.
poi·ki·lo·ther·my, poikilothermism (poy'ki-lō-ther'mē, -thĕrm'izm),
The condition of plants and cold-blooded animals, the temperature of which varies with the changes in the temperature of the surrounding medium.
[poikilo- + G. thermē, heat]
poikilothermy, poikilothermism (poy?ki-lo-ther'me) (-ther'mizm) [ poikilo- + thermo-]
The quality of being cold-blooded, in which the temperature of an organism or animal, e.g., a reptile or an amphibian, matches the temperature of the environment.See: ectotherm; endotherm
the physiological state of having body temperature that varies with that of the environment.