bifocals

جمع شاذ

A noun referring to eyeglasses that have two distinct optical powers, one for seeing objects at a distance and the other for seeing objects up close.

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1. Eyeglasses with two focal lengths B2 formal

   Spectacles that have lenses with two distinct optical powers, one for seeing distant objects and the other for reading or close work.

   • My grandfather wears bifocals to read the newspaper and watch television.
   • The optician recommended bifocals for her presbyopia.
   • He switched from reading glasses to bifocals for convenience.

   🌐نظارة ثنائية البؤرة

• bifocals plural form
• bifocals' possessive plural form
• bifocals' possessive singular form