from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Generation or production of heat, especially by physiological processes.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The generation of heat in an organism, especially by biochemical means
from The Century Dictionary and Cyclopedia
- n. The production of heat; specifically, the production of heat in the human body by physiological processes.
thermo- + -genesis (Wiktionary)