What does osmose mean?
Osmose means to undergo a slow process of absorption or diffusion, particularly when a fluid passes through a selectively permeable membrane. In scientific contexts, the term describes osmosis as an active or passive process, although the related noun osmosis is more usual when naming the phenomenon itself. The verb also has a figurative meaning: people, communities, or ideas can gradually become absorbed into a larger environment, culture, or intellectual tradition. This figurative use conveys change that is subtle, gradual, and often difficult to notice. The word is most often encountered in biology, chemistry, medicine, and discussions of cultural influence. It is related to osmosis, osmotic pressure, and instruments such as osmometers, all of which belong to the same technical vocabulary concerned with the movement of fluids through membranes.
To undergo gradual diffusion or absorption, especially of a fluid through a membrane or porous substance; figuratively, to become absorbed into a surrounding environment or body of ideas.
"The solution slowly osmosed through the membrane."
The verb is less common than the noun osmosis in technical writing. Its figurative use suggests gradual, subtle absorption.
The process by which a solvent or other fluid passes through a selectively permeable membrane, or the gradual absorption of substances, ideas, or influences into a larger system.
"The experiment demonstrated osmosis through the semipermeable film."
As a standalone noun, osmose is relatively uncommon; osmosis is normally preferred in technical contexts.
The plural is used in relatively uncommon noun usage, especially in biological or chemical discussion.
"The osmoses across the membrane were measured under controlled conditions."
A word for gradual absorption: the same process that moves water through a cell membrane also describes how communities quietly absorb ideas.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of osmose
Osmose comes through French from the Greek osmē, meaning “a push” or “an impulse,” from the verb ōthein, “to push.” The related English noun osmosis was adopted in the nineteenth century for the movement of solvent across a semipermeable membrane. The same Greek root also underlies osmotic and osmometer, terms associated with osmotic pressure and the measurement of osmotic concentration.
Related word forms
How osmose is actually used
The verb is uncommon in everyday general use but common in technical and figurative writing. In figurative use, it often implies a gradual, almost imperceptible process of absorption or influence.
Easily confused with osmose
Osmosis is the physical process by which solvent moves across a selectively permeable membrane, while osmose is the verb describing the process of passing through such a membrane or, figuratively, being absorbed into a culture or environment.
Diffusion is the general movement of particles from higher to lower concentration, whereas osmosis specifically refers to the movement of solvent across a selectively permeable membrane.