Search Result for "bifocal": 
Wordnet 3.0

ADJECTIVE (1)

1. having two foci;
- Example: "bifocal eyeglasses"


The Collaborative International Dictionary of English v.0.48:

Bifocal \Bi"fo`cal\, n. [Pref. bi-+ focal.] a bifocal lens. [PJC]
The Collaborative International Dictionary of English v.0.48:

Bifocal \Bi"fo`cal\, a. [Pref. bi-+ focal.] Having two foci, as some spectacle lenses. [Webster 1913 Suppl.]
WordNet (r) 3.0 (2006):

bifocal adj 1: having two foci; "bifocal eyeglasses"