vergence

名词 n.
中文释义

英文释义

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

词形变化

vergences plural

词源

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.
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