Twenty-twenty
or 20-20
[twen-tee-twen-tee, twuhn-tee-twuhn-tee] /ˈtwɛn tiˈtwɛn ti, ˈtwʌn tiˈtwʌn ti/
adjective
1.
Ophthalmology. having normal visual acuity.
2.
keenly or acutely perceptive:
an opinion based on twenty-twenty hindsight.
twenty-twenty
adjective
1.
(med) (of vision) being of normal acuity: usually written 20/20
twenty-twenty or 20/20
(twěn’tē-twěn’tē)
Having normal visual acuity. A person with twenty-twenty vision can see type as small as one-third of an inch at a distance of twenty feet.
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