osmotic pressure

nouns

(physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane
domain category
the branch of chemistry dealing with the physical properties of chemical substances
is a type of (narrower)
the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit)
"the compressed gas exerts an increased pressure"