1. having a lesser degree of tone or tension, as in a ‘hypotonic muscle’
2. having a lesser osmotic pressure in a fluid compared to another fluid, as in a ‘hypotonic solution’ – compare hypertonic, isotonic
3. refers to a solution with a comparatively lower concentration of solutes compared to another
Related forms: hypotonicity (noun).
Compare: hypertonic, isotonic.
See also: solution, diffusion.
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