vergence

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vergence

/ˈvɜː(ɹ)dʒəns/

Rhymes with -ɜː(ɹ)dʒəns

Where it comes from

From verge (“tend, incline”, from Latin vergere) + -ence, synonym of earlier (1660s) vergency (the equivalent of French vergence). Coined as a technical term in ophthalmology, as a hypernym of convergence and divergence, in 1902. The sense of the numeric quantity in geometric optics was introduced, from use of the term in physiological optics, in the 1920s.

noun vergences

countable, uncountable The simultaneous turning of both eyes when focusing.
countable, uncountable A measure of convergence or divergence of rays. a special vertex trial case computed for an object vergence of 4.00.
countable, uncountable The direction of the overturned component of an asymmetric fold.

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MLA

"vergence." Wiktionary, via Micwyn, micwyn.com/word/vergence. Accessed 6 Nov. 2026.

APA

vergence. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/vergence

Chicago

"vergence." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/vergence.

BibTeX

@misc{vergence_2026,
  title = {vergence},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/vergence},
  urldate = {2026-11-06}
}