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Related to tonus: clonus, muscle tonus


n. pl. to·nus·es
Body or muscular tone; tonicity.

[Latin, tone; see tone.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Physiology) physiol the normal tension of a muscle at rest; tone
[C19: from Latin, from Greek tonos tone]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈtoʊ nəs)

a normal state of continuous slight tension in muscle tissue that facilitates its response to stimulation.
[1875–80; < New Latin, Latin < Greek tónos tone]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tonus - the elastic tension of living muscles, arteries, etc. that facilitate response to stimulitonus - the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity"
muscular tissue, muscle - animal tissue consisting predominantly of contractile cells
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
muscle tone, muscular tonus - normal tonicity of the muscles; "exercise improves muscle tone"
myotonia - abnormally long muscular contractions; slow relaxation of a muscle after a contraction
hypertonia, hypertonus, hypertonicity - (of muscular tissue) the state of being hypertonic
hypotonia, hypotonus, hypotonicity - (of muscular tissue) the state of being hypotonic
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
cit.): "Fear and joy may both cause cardiac palpitation, but in one case we find high tonus of the skeletal muscles, in the other case relaxation and the general sense of weakness."
The combined sales of Tonus Elast and Elast Medical during the seven months this year totaled EUR 5.6 million which is an increase by 4 percent.
Cette dynamique mettait beaucoup de tonus dans le corps du theatre engage qui contribuait, a cette epoque cruciale de l'histoire de la nation, au relevement de la pensee eclairee et de la conscience collective.
Writers Marcelo Maluf, Ana Miranda and Marco Lucchesi, the anthology's editor and project mastermind Mirna Queiroz, and organiser Leonardo Tonus will be in Abu Dhabi for the 29th edition of the book fair, which will take place on April 24-30.
Ao longo do tempo, o debito cardiaco de um individuo fisicamente ativo permanece o mesmo de um individuo sedentario, no entanto, a frequencia cardiaca em repouso e menor no treinado com o aumento do tonus vagal (Boyett e colaboradores, 2013), diminuicao do tonus simpatico do coracao (Matelot e colaboradores, 2013) e diminuicao da frequencia cardiaca intrinseca do coracao (Bahrainy e colaboradores, 2016).
The intraoperative and postoperative results of the patients Patient RIS Intervention Po 1st Po 7th Po 7th day no period (mn) day anal day anal tonus and tonus tonus continans 1 3 15 Minimal Minimal Normal 2 2 30 Minimal Minimal Normal 3 2 30 Minimal Minimal Incontinence 4 3 25 Minimal Minimal Normal 5 3 25 Minimal Minimal Normal 6 2 30 Minimal Minimal Incontinence 7 3 20 Minimal Minimal Incontinence Po: Postoperative, RIS: Rectal injury score
It is necessary to establish the cause, the degree and distrubution of spasticity; localization of injury; comorbidity (contractures, cognitive decline ...); clinical course of the disease; cognitive status of the patient; potential adverse effects; support of the family and community; passive mobility, presence of clonus, reflexes, tonus estimation and active mobility; electromyoneurography; quantitative analysis of walking; spasticity estimation using the Ashworth scale, spasm scale, Wartenberg pendulum test, and Tardieu scale [5, 6].
All patients were incontinent and felt to have impaired anal tonus.
Changes in tongue tonus may interfere with the orofacial myofunctional performance and impair the individual's quality of life (2, 3).
We also looked for correlations between cortical lateralization of autonomic control and autonomic changes on sympatho-vagal balance like sympathetic tonus predominance and non-dipper profile in continuous blood pressure monitoring, as these might predict patient's progress.