I. adjective Etymology: International Scientific Vocabulary Date: 1888 having two focal lengths, having one part that corrects for near vision and one for distant vision , II. noun Date: 1899 eyeglasses with ~ lenses, a ~ glass or lens
BIFOCAL
Meaning of BIFOCAL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012