poikilothermism

or poi·ki·lo·ther·my

[ poi-kuh-loh-thur-miz-uhm, poi-kil-uh- ]

nounZoology.
  1. the state or quality of being cold-blooded, as fishes and reptiles.

Origin of poikilothermism

1
First recorded in 1900–05; from Greek poikilos “various” + therm- + -ism

Words Nearby poikilothermism

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024