twen·ty-twen·ty or 20/20 (tw?n?t?-tw?n?t?, tw?n?t?-tw?n?t?)adj. Having normal visual acuity.[From a method of testing vision by reading charts at a distance of 20 feet.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
2020
2020
twen·ty-twen·ty or 20/20 (tw?n?t?-tw?n?t?, tw?n?t?-tw?n?t?)adj. Having normal visual acuity.[From a method of testing vision by reading charts at a distance of 20 feet.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.