bifocal
bi-fo-cal
noun
A lens or pair of glasses with two optical powers.
"She picked up her new bifocals."
adjective
Having two optical powers for both near and distant vision.
"He uses bifocal lenses to see clearly."
Thesaurus
Synonyms: central
bi-fo-cal
A lens or pair of glasses with two optical powers.
"She picked up her new bifocals."
Having two optical powers for both near and distant vision.
"He uses bifocal lenses to see clearly."
Synonyms: central