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bifocal

bi·fo·cal
B b

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [bahy-foh-kuh l, bahy-foh-]
    • /baɪˈfoʊ kəl, ˈbaɪˌfoʊ-/
    • /ˌbaɪˈfəʊ.kəlz/
    • US Pronunciation
    • US IPA
    • [bahy-foh-kuh l, bahy-foh-]
    • /baɪˈfoʊ kəl, ˈbaɪˌfoʊ-/

Definitions of bifocal word

  • adjective bifocal having two different focuses 3
  • adjective bifocal relating to a compound lens permitting near and distant vision 3
  • adjective bifocal adjusted to two different focal lengths 3
  • noun bifocal a lens, esp. for eyeglasses, with one part ground for close focus, as for reading, and the other ground for distance 3
  • adjective bifocal Chiefly Optics. having two foci. 1
  • adjective bifocal (of an eyeglass or contact lens) having two portions, one for near and one for far vision. 1

Information block about the term

Origin of bifocal

First appearance:

before 1885
One of the 21% newest English words
An Americanism dating back to 1885-90; bi-1 + focal

Historical Comparancy

Parts of speech for Bifocal

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation

bifocal popularity

A common word. It’s meaning is known to most children of preschool age. About 73% of English native speakers know the meaning and use the word.
This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

bifocal usage trend in Literature

This diagram is provided by Google Ngram Viewer

Synonyms for bifocal

noun bifocal

  • glassCarter, 1858–1946, U.S. statesman.
  • spectacles — anything presented to the sight or view, especially something of a striking or impressive kind: The stars make a fine spectacle tonight.
  • contact — Contact involves meeting or communicating with someone, especially regularly.
  • optic — of or relating to the eye or sight.
  • monocle — an eyeglass for one eye.

Top questions with bifocal

  • who invented bifocal glasses?
  • how do bifocal contacts work?
  • what does bifocal mean?
  • what is bifocal?
  • what are bifocal lenses?
  • what are bifocal glasses?
  • who invented the bifocal glasses?
  • what is bifocal glasses?
  • what is the difference between progressive and bifocal lenses?
  • how do bifocal contact lenses work?
  • what is the difference between single vision and bifocal?
  • how do bifocal lenses work?
  • how much do bifocal glasses cost?
  • when was the bifocal glasses invented?
  • who invented bifocal eyeglasses?

See also

Matching words

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