- the production of heat by metabolic processes
WordReference Random House Unabridged Dictionary of American English © 2026
ther•mo•gen•e•sis
(thûr′mō jen′ə sis),USA pronunciation n.
ther•mo•ge•net•ic
(thûr′mō jə net′ik),USA pronunciation adj.
- Physiology, Zoologythe production of heat, esp. in an animal body by physiological processes.
- 1890–95; thermo- + -genesis
Collins Concise English Dictionary © HarperCollins Publishers::
thermogenesis /ˌθɜːməʊˈdʒɛnɪsɪs/ n