bifocals
/baɪˈfoʊkəlz/
noun
- Eyeglasses with lenses that have two distinct optical powers, one for seeing distant objects and one for seeing close objects.
- Benjamin Franklin is often credited with inventing bifocals in the 18th century.
- After turning 45, she finally got bifocals to help with reading small print.
- He kept his bifocals in a hard case to protect them from scratches.
Synonyms