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Related to tonus: clonus, muscle tonus
n. pl. to·nus·es
Body or muscular tone; tonicity.
[Latin, tone; see tone.]
(Physiology) physiol the normal tension of a muscle at rest; tone
[C19: from Latin, from Greek tonos tone]
a normal state of continuous slight tension in muscle tissue that facilitates its response to stimulation.
[1875–80; < New Latin, Latin < Greek tónos tone]
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|Noun||1.||tonus - the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity"|
tautness, tenseness, tensity, tension - the physical condition of being stretched or strained; "it places great tension on the leg muscles"; "he could feel the tenseness of her body"
catatonia - extreme tonus; muscular rigidity; a common symptom in catatonic schizophrenia
myotonia - abnormally long muscular contractions; slow relaxation of a muscle after a contraction