from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Maintenance of an optimal, constant osmotic pressure in the body of a living organism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The homeostatic regulation of osmotic pressure in the body in order to maintain a constant water content
osmo(sis) + regulation.(American Heritage® Dictionary of the English Language, Fourth Edition)