Definition of vergence in English:

vergence

Line breaks: ver|gence
Pronunciation: /ˈvəːdʒ(ə)ns
 
/

noun

[mass noun]
  • 1 Physiology The simultaneous movement of the pupils of the eyes towards or away from one another during focusing.
    More example sentences
    • In doing so, they perform saccadic movements, smooth pursuit movements, vergence movements, vestibular movements, and accommodation.
    • Pure vergence movements, uncontaminated by saccades, occur when changing gaze between two targets, both lying straight ahead, but at different distances.
  • 2 Geology The direction in which a fold is inclined or overturned: a zone of opposing fold vergence
    More example sentences
    • Fold and cleavage vergence varies across the domain, from SE through neutral to NW, although a majority verge SE.
    • Major and minor folds with clear vergence relationships change their sense around the Rhoscolyn Anticline.
    • A foreland fold-thrust belt with a southwestward vergence formed south of the Mazar-Kangxiwar fault.

Origin

1980s: common element of convergence and divergence.

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