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vagus

[vey-guh s]
noun, plural va·gi [vey-jahy, -gahy] /ˈveɪ dʒaɪ, -gaɪ/.
  1. vagus nerve.
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Origin of vagus

1830–40; < Latin: wandering
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for vagus

vagus

vagus nerve

noun plural -gi (-dʒaɪ)
  1. the tenth cranial nerve, which supplies the heart, lungs, and viscera
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Word Origin

C19: from Latin vagus wandering
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

Word Origin and History for vagus

n.

plural vagi, 1840, from Latin vagus "wandering, straying" (see vague).

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Online Etymology Dictionary, © 2010 Douglas Harper

vagus in Medicine

vagus

(vāgəs)
n. pl. va•gi (-gī, -jī)
  1. The vagus nerve.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.