OSMOTIC PRESSURE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does osmotic pressure mean? 

• OSMOTIC PRESSURE (noun)
  The noun OSMOTIC PRESSURE has 1 sense:

1. (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

  Familiarity information: OSMOTIC PRESSURE used as a noun is very rare.

 Dictionary entry details 

• OSMOTIC PRESSURE (noun)

Sense 1

Meaning:

(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

Classified under:

Nouns denoting natural phenomena

Hypernyms ("osmotic pressure" is a kind of...):

force per unit area; pressure; pressure level (the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit))

Domain category:

physical chemistry (the branch of chemistry dealing with the physical properties of chemical substances)

Hyponyms (each of the following is a kind of "osmotic pressure"):

hypertonicity ((of a solution) the extent to which a solution has a higher osmotic pressure than some other)

hypotonicity ((of a solution) the extent to which a solution has a lower osmotic pressure than some other)

 Context examples 

Ions flow out, but large molecules stay in, causing water to flood into the cell and ultimately burst the cell from osmotic pressure.

(Classical Complement Pathway, NCI Thesaurus/BIOCARTA)

A non-SI unit of osmotic pressure equal to that of an ideal solution of a nondissociating substance that has a concentration of one mole of solute per liter of solution.

(Osmole, NCI Thesaurus)

A unit of osmotic pressure equal to one thousandth of an osmole per kilogram substance.

(Milliosmole per Kilogram, NCI Thesaurus/CDISC)

A unit of osmotic pressure equal to one thousandth of osmole or osmotic pressure of 0.001 molar solution of a substance that does not dissociate.

(Milliosmole, NCI Thesaurus)

A unit of osmotic pressure equal to one millionth of an osmole or the osmotic pressure of a 10E-6 molar solution of a substance that does not dissociate.

(Microosmole, NCI Thesaurus)

A solid designed to release active and/or inert ingredient(s) at a controlled, prolonged rate so as to reduce dosing frequency, based on osmotic pressure between the inside of the dosage form and the external environment.

(Osmotic Pump Extended Release Dosage Form, NCI Thesaurus)