Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Having three focal lengths.
  • adjective Having one section that corrects for distant vision, a second section that corrects for medium vision, and a third that corrects for near vision, as an eyeglass lens.
  • noun A lens having three focal lengths.
  • noun Eyeglasses having trifocal lenses.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

Etymologies

Sorry, no etymologies found.

Examples

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

  • The cost, complete with two pairs of progressive (trifocal blended) lenses (one sunglass type) and the frames was around $2500 pesos.

    eye glasses

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