from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The inward flow of a fluid through a permeable membrane toward a fluid of greater concentration.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. osmosis in which fluid flows through a membrane towards a region of higher concentration
from The Century Dictionary and Cyclopedia
- n. The transmission of a fluid inward through a porous septum or partition which separates it from another fluid of different density: opposed to exosmosis: see osmosis.
endo- + osmosis? (Wiktionary)