Definitions for tonicitytoʊˈnɪs ɪ ti
This page provides all possible meanings and translations of the word tonicity
tonicity, tonus, tone(noun)
the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli
"the doctor tested my tonicity"
The normal presence of tone or tension in a muscle or organ; tonus
The ability of a solution to exert an osmotic pressure upon a membrane
the state of healthy tension or partial contraction of muscle fibers while at rest; tone; tonus
Tonicity is a measure of the osmotic pressure gradient of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an external solution. Like osmotic pressure, tonicity is influenced only by solutes that cannot cross the membrane, as only these exert an osmotic pressure. Solutes able to freely cross the membrane do not affect tonicity because they will always be in equal concentrations on both sides of the membrane. There are three classifications of tonicity that one solution can have relative to another. The three are hypertonic, hypotonic, and isotonic.
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