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(hī″pŏ-tō′nē-ă, pō- )
[hypo- + tono- + -ia]
1. In physiology, an abnormally low intrinsic resting tension, i.e., low tone in muscles or arteries.
2. In chemistry, an osmotic pressure lower than a reference or isotonic solution.
hypotonic (hī″pŏ-ton′ik, pō- ), adj.