BIFOCAL


Meaning of BIFOCAL in English

[bi.fo.cal] adj [ISV] (1888) 1: having two focal lengths

2: having one part that corrects for near vision and one for distant vision "a ~ eyeglass lens"

[2]bifocal n (1899) 1 pl: eyeglasses with bifocal lenses

2: a bifocal glass or lens

Merriam-Webster English vocab.      Английский словарь Merriam Webster.