Bifocals

What is Bifocals?

Bifocals definition and meaning on Dictionary terms:
adjective
Chiefly Optics. having two foci.
(of an eyeglass or contact lens) having two portions, one for near and one for far vision.

noun
bifocals, bifocal eyeglasses or contact lenses.

 

reference: https://www.dictionary.com/browse/bifocals

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