Definition
noun
(1) The condition in which the muscle tone is abnormally low, resulting in a diminished resistance of muscles to passive stretching, as in muscle hypotonia.
(2) Reduced tension of a body part, used of the arteries and the intraocular fluid of the eyeball.
Supplement
Word origin: hypo (low) + tonia » Greek tónos (tone).
Compare: hypertonia
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