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Definition of Trifocals
1. Noun. (optics) Spectacles with corrective lenses that have three different powers per eye. ¹
¹ Source: wiktionary.com
Definition of Trifocals
1. trifocal [n] - See also: trifocal
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1. Noun. (optics) Spectacles with corrective lenses that have three different powers per eye. ¹
¹ Source: wiktionary.com
1. trifocal [n] - See also: trifocal