bifocal

[ bahy-foh-kuhl, bahy-foh- ]
See synonyms for: bifocalbifocals on Thesaurus.com

adjective
  1. Chiefly Optics. having two foci.

  2. (of an eyeglass or contact lens) having two portions, one for near and one for far vision.

noun
  1. bifocals, bifocal eyeglasses or contact lenses.

Origin of bifocal

1
An Americanism dating back to 1885–90; bi-1 + focal

Words Nearby bifocal

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use bifocal in a sentence

British Dictionary definitions for bifocal

bifocal

/ (baɪˈfəʊkəl) /


adjective
  1. optics having two different focuses

  2. 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