hypotonicity

Noun	1.	hypotonicity - (of a solution) the extent to which a solution has a lower osmotic pressure than some other osmotic pressure - (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 hypertonicity - (of a solution) the extent to which a solution has a higher osmotic pressure than some other
	2.	hypotonicity - (of muscular tissue) the state of being hypotonic hypotonia, hypotonus tonicity, tonus, tone - the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity" hypertonia, hypertonus, hypertonicity - (of muscular tissue) the state of being hypertonic

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