(biology, chemistry) diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
The net movement of solvent molecules from a region of high solvent potential to a region of lower solvent potential through a partially permeable membrane
Picking up knowledge accidentally, without actually seeking that particular knowledge.
I was reading about chickens, and I guess I learned about hawks through osmosis.
Osmosis is the spontaneous net movement of solvent molecules through a partially permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves, without input of energy, across a semipermeable membrane separating two solutions of different concentrations. Although osmosis does not require input of energy, it does use kinetic energy and can be made to do work. The osmotic pressure is defined to be the pressure required to maintain an equilibrium, with no net movement of solvent. Osmotic pressure is a colligative property, meaning that the osmotic pressure depends on the molar concentration of the solute but not on its identity. Osmosis is essential in biological systems, as biological membranes are semipermeable. In general, these membranes are impermeable to large and polar molecules, such as ions, proteins, and polysaccharides, while being permeable to non-polar and/or hydrophobic molecules like lipids as well as to small molecules like oxygen, carbon dioxide, nitrogen, nitric oxide, etc. Permeability depends on solubility, charge, or chemistry, as well as solute size. Water molecules travel through the plasma membrane, tonoplast membrane or protoplast by diffusing across the phospholipid bilayer via aquaporins. Osmosis provides the primary means by which water is transported into and out of cells. The turgor pressure of a cell is largely maintained by osmosis, across the cell membrane, between the cell interior and its relatively hypotonic environment.
U.S. National Library of Medicine
Tendency of fluids (e.g., water) to move from the less concentrated to the more concentrated side of a semipermeable membrane.
The numerical value of osmosis in Chaldean Numerology is: 1
The numerical value of osmosis in Pythagorean Numerology is: 1
Sample Sentences & Example Usage
That didn't happen by osmosis or a fairy godmother came down and just made it happen, that required changes in policy. So I like Chris Christie, I think he's a talent for sure, and he's my friend, but I've got a record.
Images & Illustrations of osmosis
Translations for osmosis
From our Multilingual Translation Dictionary
- osmosiCatalan, Valencian
- பிரசாரணம், சவ்வூடு பரவல்Tamil
Get even more translations for osmosis »
Find a translation for the osmosis definition in other languages:
Select another language: