bifocal
AdjectiveWordNet 3.0
Adjective (1)
- having two foci“bifocal eyeglasses”
Webster's Dictionary (GCIDE)
Bifocal \Bi"fo`cal\, n. [Pref. bi-+ focal.] a bifocal lens. [PJC]
Bifocal \Bi"fo`cal\, a. [Pref. bi-+ focal.] Having two foci, as some spectacle lenses. [Webster 1913 Suppl.]