hypertonicityn.
/ˌhʌɪpətəˈnɪsɪti/ The condition of being hypertonic.
a. Medicine. Of muscle or muscular tissue (see hypertonic adj. 1); = hypertonia n.
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the world > health and disease > ill health > a disease > diseases of tissue > disorders affecting muscles > [noun] > hypertonia
hypertonia1842
hypertonicity1886
hypertonus1904
1886 Brain 9 231 A condition of extreme functional over-activity of the ganglion cells of the anterior cornua of the cord and medulla, causing hyper-tonicity of the entire muscular system.
1923 J. F. H. Dally High Blood Pressure v. 64 Arterial hypertonicity, in larger or smaller areas, is met with in a host of disorders.
1949 Jrnl. Neurophysiol. 12 371 Hypertonicity of muscles with hyperactive deep reflexes or clonus.
b. Physiology. Of a solution (see hypertonic adj. 2); the extent to which a solution has higher osmotic pressure than some other.
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the world > life > the body > secretory organs > secretion > [noun] > fluid secretion > degrees of osmotic pressure
hypertonicity1896
isotonicity1896
hypotonicity1906
1896 T. L. Stedman 20th Cent. Pract. VII. 284 The hypertonicity of the plasma is easily calculated.
1906 Amer. Jrnl. Physiol. 15 359 When the hypertonicity is slight, the degree of recovery is relatively greater than in the case of the more concentrated solutions.
1963 E. Ernst Biophysics Striated Muscle (ed. 2) 131 The next experiments were planned in such a way that the loss of water [from the muscle] due to the hypertonicity of the medium should be balanced by water taken up by the swelling elicited by lactic acid.
This entry has not yet been fully updated (first published 1976; most recently modified version published online September 2019).
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n.1886