twenty-twenty

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twen·ty-twen·ty

or 20/20 (twĕn′tē-twĕn′tē, twŭn′tē-twŭn′tē)
adj.
Having normal visual acuity.

[From a method of testing vision by reading charts at a distance of 20 feet.]

twenty-twenty

adj
(Medicine) med (of vision) being of normal acuity: usually written 20/20

twen′ty-twen′ty

or 20-20,



adj.
having normal visual acuity.
[1870–75; so called from the testing of vision with standard eye charts from a distance of 20 feet]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.twenty-twenty - normal visual acuity, as measured by the ability to read charts at a distance of 20 feet
acuity, sharp-sightedness, visual acuity - sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)