Definitions for trifocaltraɪˈfoʊ kəl, ˈtraɪˌfoʊ-

This page provides all possible meanings and translations of the word trifocal

Random House Webster's College Dictionary

tri•fo•caltraɪˈfoʊ kəl, ˈtraɪˌfoʊ-(adj.)

  1. (of a lens) having three foci.

    Category: Optics

  2. (of an eyeglass lens) having three portions, one for near, one for intermediate, and one for far vision.

  3. (n.)trifocals, eyeglasses with trifocal lenses.

Origin of trifocal:

1945–50

Wiktionary

  1. trifocal(Adjective)

    Of or pertaining to corrective lenses that have three different powers per eye.


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