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vergence

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

Definition of vergence in English:

noun

[mass noun]
1 Physiology The simultaneous movement of the pupils of the eyes towards or away from one another during focusing.
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.

Definition of vergence in:

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