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

Origin of vagus

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

Examples from the Web for vagi

Historical Examples

  • Robinson and Draper have found qualitative differences in the two vagi.

    Arteriosclerosis and Hypertension:

    Louis Marshall Warfield

  • The Vagi turn the pastoral to their own purpose, and always represent the greenwood lover as a clericus.

  • Hi neque moribus neque lege aut imperio cujusquam regebantur; vagi, palantes, qua nox coëgerat, sedes habebant.

    De Bello Catilinario et Jugurthino

    Caius Sallustii Crispi (Sallustius)

  • The slowing is central in its origin, for on the vagi being cut, morphine always quickens.

  • With regard to the peripheric ends of the vagi, small doses excite, large paralyse.

British Dictionary definitions for vagi


vagus nerve

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

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 vagi



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

Online Etymology Dictionary, © 2010 Douglas Harper

vagi in Medicine


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