Ophthalmology. having normal visual acuity.
keenly or acutely perceptive: an opinion based on twenty-twenty hindsight.
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How to use twenty-twenty in a sentence
"Nineteen—twenty—twenty-one," the people in the Garden of the Tuileries counted.Harper's Round Table, September 10, 1895 | Various
British Dictionary definitions for twenty-twenty
med (of vision) being of normal acuity: usually written 20/20
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for twenty-twenty
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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