Origin of poikilothermic
1880–85; < Greek poikílo(s) various + thermic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (of all animals except birds and mammals) having a body temperature that varies with the temperature of the surroundingsCompare homoiothermic
C19: from Greek poikilos various + thermal
- Of or relating to an organism having a body temperature that varies with the temperature of its surroundings; cold-blooded.
- Capable of existing and growing in media of varying temperatures.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.