Tonicity vs. Osmolarity

Tonicitynoun

(medicine) The normal presence of tone or tension in a muscle or organ; tonus

Tonicitynoun

(sciences) The ability of nonpenetrable solutes in a solution to exert an osmotic pressure upon a membrane

Tonicitynoun

The state of healthy tension or partial contraction of muscle fibers while at rest; tone; tonus.

Tonicitynoun

the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli;

Tonicity

Tonicity is a measure of the effective osmotic pressure gradient; the water potential of two solutions separated by a semipermeable cell membrane. In other words, tonicity is the relative concentration of solutes dissolved in solution which determine the direction and extent of diffusion.

Osmolaritynoun

(chemistry) The osmotic concentration of a solution, normally expressed as osmoles of solute per litre of solution.