[ hahy-per-ton-ik ]

  1. Physiology. of or relating to hypertonia.

  2. Physical Chemistry. noting a solution of higher osmotic pressure than another solution with which it is compared (opposed to hypotonic).: Compare isotonic (def. 1).

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Origin of hypertonic

First recorded in 1850–55; hyperton(ia) + -ic

Other words from hypertonic

  • hy·per·to·nic·i·ty [hahy-per-toh-nis-i-tee], /ˌhaɪ pər toʊˈnɪs ɪ ti/, noun

Words Nearby hypertonic

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How to use hypertonic in a sentence

  • Rogers has reduced the mortality of cholera by intravenous injections of hypertonic saline until it is only 15 per cent.

  • Loeb and Wasteneys found that the hypertonic solution does not increase the rate of oxidations in a fertilized egg.

  • What does the hypertonic solution do to prevent the disintegration of the egg after the artificial membrane formation?

  • The time of exposure in the hypertonic solution diminishes in certain limits with the concentration of OH ions in the solution.

  • A bipolar field has a hypertonic pole or centre of concentration, and a hypotonic pole or centre of dilution.

    The Mechanism of Life | Stphane Leduc

British Dictionary definitions for hypertonic


/ (ˌhaɪpəˈtɒnɪk) /

  1. (esp of muscles) being in a state of abnormally high tension

  2. (of a solution) having a higher osmotic pressure than that of a specified, generally physiological, solution: Compare hypotonic, isotonic

Derived forms of hypertonic

  • hypertonicity (ˌhaɪpətəʊˈnɪsɪtɪ), noun

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