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Like some eyeglass lenses
Answer for the clue "Like some eyeglass lenses ", 7 letters:
bifocal
Alternative clues for the word bifocal
Word definitions for bifocal in dictionaries
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Bifocal \Bi"fo`cal\, a. [Pref. bi-+ focal.] Having two foci, as some spectacle lenses.
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
"having two foci," 1844, from bi- + focal .
Wiktionary
Word definitions in Wiktionary
a. 1 (context optics English) Having two focal lengths 2 (context of a correcting lens English) Divided into two parts, one of which corrects for distance vision and the other for near vision
Wikipedia
Word definitions in Wikipedia
Bifocal may refer to: Bifocals , eyeglasses whose corrective lenses each contain regions with two distinct optical powers Fundamental matrix (computer vision) , sometimes referred to as "bifocal tensor"
Usage examples of bifocal.
A frowning middle-aged woman with conspicuously rouged cheeks, chunky bifocal glasses.
Her thinning blue-gray hair was set neatly above a smooth, plump face, broken only by the bifocal spectacles perched low on the bridge of her potato nose.