vergency
Noun
The act of verging or approaching; tendency, inclination towards something.
Usage- Dated
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s.v. hanker: "vergency, incline"
the Earth is moved about the Sun by its Inclination and Vergency towards it
More examples (1)
1721 Nathan Bailey, An Universal Etymological English Dictionary, E. Bell, London. "VERGENCY [of vergere, L.] a bending or declining away, from or to, inclining."
The reciprocal of the focal distance of a lens, used as a measure of the divergence or convergence of a pencil of rays.
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More examples (1)
When, by the pencil becoming oblique to the surface, the vergency produced on the pencil becomes changed, the primary and secondary focal points, V and H, separate […]
Word forms
vergencies