Bifocals
Chiefly Optics. having two foci.
(of an eyeglass or contact lens) having two portions, one for near and one for far vision.
bifocals, bifocal eyeglasses or contact lenses.
Contemporary Examples
Hold the Dressing Arianne Cohen November 10, 2008
Historical Examples
Cue for Quiet Thomas L. Sherred
Down and Out in the Magic Kingdom Cory Doctorow
“To Invade New York….” Irwin Lewis
The Brain Alexander Blade
plural noun
a pair of spectacles with bifocal lenses
adjective
(optics) having two different focuses
relating to a compound lens permitting near and distant vision
n.
adj.
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