from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An organism that generates heat to maintain its body temperature, typically above the temperature of its surroundings; a homeotherm.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a warm-blooded animal that maintains a constant body temperature
from The Century Dictionary and Cyclopedia
- n. In chem., a compound substance in the formation of which from its constituents energy is absorbed, and in its decomposition energy (usually heat) is evolved.
Sorry, no etymologies found.