vergence

[ vur-juhns ]
/ ˈvɜr dʒəns /

noun Ophthalmology.

the turning motion of the eyeballs toward or away from each other.Compare convergence (def. 4), divergence (def. 3).

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Origin of vergence

First recorded in 1900–05; verge2 + -ence
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for vergence

vergence
/ (ˈvɜːdʒəns) /

noun

the inward or outward turning movement of the eyes in convergence or divergence

Word Origin for vergence

C19: from verge ² + -ence
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

Medical definitions for vergence

vergence
[ vûrjəns ]

n.

A disjunctive movement of the eyes in which the fixation axes are not parallel.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.