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[vey-guh-toh-nee-uh] /ˌveɪ gəˈtoʊ ni ə/
noun, Pathology.
hyperexcitability of the vagus nerve, producing bradycardia, decreased heart output, and faintness.
Origin of vagotonia
First recorded in 1910-15; vago- + -tonia
Related forms
[vey-guh-ton-ik] /ˌveɪ gəˈtɒn ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for vagotonic
Historical Examples
  • In peaceful sleep, we observe that the vagotonic functions hold full sway.

    Psychoanalysis Andr Tridon
  • But we have here simply one of the vagotonic activities mentioned previously.

    Psychoanalysis Andr Tridon
British Dictionary definitions for vagotonic


pathological overactivity of the vagus nerve, affecting various bodily functions controlled by this nerve
Word Origin
C19: from vag(us) + -tonia, from Latin tonus tension, tone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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vagotonic in Medicine

vagotonia va·go·to·ni·a (vā'gə-tō'nē-ə)
Overactivity or irritability of the vagus nerve, adversely affecting function of the blood vessels, stomach, and muscles. Also called sympathetic imbalance.

va'go·ton'ic (-tŏn'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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