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Definition of Twenty-twenty
1. Noun. Normal visual acuity, as measured by the ability to read charts at a distance of 20 feet.
Definition of Twenty-twenty
1. Adjective. Having normal visual acuity. ¹
¹ Source: wiktionary.com
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1. Noun. Normal visual acuity, as measured by the ability to read charts at a distance of 20 feet.
1. Adjective. Having normal visual acuity. ¹
¹ Source: wiktionary.com