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单词 clonus
释义

clonusn.

Brit. /ˈkləʊnəs/, U.S. /ˈkloʊnəs/
Origin: A borrowing from Latin. Etymon: Latin clonus.
Etymology: < scientific Latin clonus (see quot. 1817) < ancient Greek κλόνος confused motion, turmoil, agitation in physiological sense < κέλεσθαι to command, advise, call on ( < the same Indo-European base as ancient Greek κελεύειν to order (see celeusma n.), classical Latin celer : see celerity n.) + -όνος , suffix forming nouns. Compare earlier clonic adj.
Medicine.
A spasm or series of spasms of alternate muscular contraction and relaxation. Cf. clonic adj.
ΘΚΠ
the world > health and disease > ill health > a disease > diseases of tissue > disorders affecting muscles > [noun] > spasm or cramp > series
clonus1822
paramyoclonus1882
myoclonus1883
myoclonia1899
1817 J. M. Good Physiol. Syst. Nosol. 339 Genus III. Clonus. Forcible agitation of one or more muscles in sudden and irregular snatches.]
1822 J. M. Good Study Med. III. 513 Syspasia..literally imports convulsion in the popular sense of the term, or in other words, clonus or agitatory spasm, in combination with..failure of the sensation and the understanding.
1891 F. Taylor Man. Pract. Med. (ed. 2) 148 In some cases a clonus can be obtained at the knee.
1906 Practitioner Dec. 825 The patient has exaggerated tendon reflexes and sometimes a little clonus.
1962 Lancet 26 May 1132/2 She has ankle clonus on the right and she walks with a scissors gait.
2008 M. Latash Neurophysiological Basis Movement 312 Another typical sign of spasticity is clonus..which is a series of alternating bursts of activity.
This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).
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n.1822
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