bifocal
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.
Origin of bifocal
1Words Nearby bifocal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use bifocal in a sentence
People with progressive lenses or bifocals may need to go to an optician in person.
How to safely get an eye exam and buy glasses during the pandemic | Lindsey Konkel | April 12, 2021 | Washington PostAny other fish or mammal would have been just as likely as Anableps to begin the development of a bifocal eye.
Parallel Paths | Thomas William RollestonHis most direct contribution to medicine was the invention for his own use of bifocal eyeglasses.
The very bifocal glasses, now in such general use, that he wore were a triumph of his own quick wit.
Benjamin Franklin; Self-Revealed, Volume II (of 2) | Wiliam Cabell Bruce
British Dictionary definitions for bifocal
/ (baɪˈfəʊkəl) /
optics having two different focuses
relating to a compound lens permitting near and distant vision
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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