hypotonusn.
/hʌɪpəˈtəʊnəs/ 1. Ophthalmology. = hypotonia n. 1. Now rare.
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the world > health and disease > ill health > a disease > disorders of eye > [noun] > disorders of intraocular fluid
hydrophthalmia1706
hypotonia1886
hypertonus1891
hypotonus1891
hypotension1909
uveoparotitis1917
hypertension1918
1891 F. P. Foster Illustr. Encycl. Med. Dict. III. 1955/2 Hypotonus, that condition of the eye in which the intra-ocular tension is below normal, without being of necessity accompanied by any organic disease of the eyeball.
1918 R. H. Elliot Glaucoma ii. 22 If too large and too free a channel is cut in the ocular tunic, the escape of fluid is so rapid that a condition of hypotonus results.
2. Medicine. = hypotonia n. 2.
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the world > health and disease > ill health > a disease > diseases of tissue > disorders affecting muscles > [noun] > hypotonia
hypotonia1886
hypotonus1904
hypotonicity1910
1904 Rev. Neurol. & Psychiatry II. 776 The legs showed very marked hypotonus.
1928 J. F. H. Dally Low Blood Pressure ii. 22 Hypotonia (vascular hypotonus) represents a dynamic and physical state of diminished tonus of the smooth muscle in the walls of arteries and veins.
1939 W. Haymaker tr. R. Bing Textbk. Nerv. Dis. xi. 318 Hypotonus of the quadriceps is sometimes so marked in tabes that the heel can be brought up to the buttock.
This entry has not yet been fully updated (first published 1976; most recently modified version published online June 2018).
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n.1891