Dictionary.com

bifocal

[ bahy-foh-kuhl, bahy-foh- ]
/ baɪˈfoʊ kəl, ˈbaɪˌfoʊ- /
Save This Word!
See synonyms for: bifocal / bifocals on Thesaurus.com

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.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of bifocal

An Americanism dating back to 1885–90; bi-1 + focal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use bifocal in a sentence

British Dictionary definitions for bifocal

bifocal
/ (baɪˈfəʊkəl) /

adjective
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

Medical definitions for bifocal

bifocal
[ bī-fōkəl, bīfō′- ]

adj.
Having two focal lengths.
Having one section that corrects for distant vision and another that corrects for near vision.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
FEEDBACK