hypertonic

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hy·per·ton·ic / ˌhīpərˈtänik/ • adj. having increased pressure or tone, in particular: ∎ Biol. having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid. ∎ Physiol. of or in a state of abnormally high muscle tone. DERIVATIVES: hy·per·to·ni·a / -ˈtōnēə/ n. (of muscles). hy·per·to·nic·i·ty / ˌhīpərtəˈnisitē/ n.

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hypertonic Applied to a cell in which the osmotic pressure is higher than that in the surrounding medium. Compare hypotonic and isotonic.

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hypertonic Applied to a cell in which the osmotic pressure is higher than that in the surrounding medium. Compare HYPOTONIC and ISOTONIC.

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hypertonic (hy-per-tonn-ik) adj.
1. describing a solution that has a greater osmotic pressure than another solution. See osmosis.

2. describing muscles that demonstrate an abnormal increase in tonicity.

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hypertonic Applied to a cell in which the osmotic pressure is higher than that in the surrounding medium. Compare HYPOTONIC, ISOTONIC.

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hypertonic A solution more concentrated than the body fluids; see isotonic.