vergence

Mane (Îngilîzî)

1. The simultaneous turning of both eyes when focusing.
2. A measure of convergence or divergence of rays.
3. The direction of the overturned component of an asymmetric fold.

Werger

έγκληση

منقلب

vergència

vergence

vergencia

Wekî (IPA) tê bilêvkirin

/ˈvɜː(ɹ)dʒəns/

Etîmolojî (Îngilîzî)

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 hyperonym 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.