Dictionary
twenty–twenty
adjective twen·ty–twen·ty \-ˈtwen-tē, -ˈtwən-\
: having good vision and able to see without glasses
Full Definition of TWENTY-TWENTY
1
of the human eye : meeting a standard of normal visual acuity <twenty–twenty vision>
2
: marked by facilely accurate discernment, judgment, or assessment <hindsight is twenty–twenty>
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Variants of TWENTY-TWENTY
twen·ty–twen·ty or 20/20 \-ˈtwen-tē, -ˈtwən-\
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Origin of TWENTY-TWENTY
from the testing of vision by reading letters at a distance of 20 feet
First Known Use: 1875
Medical Dictionary
twenty–twenty
adjective twen·ty–twen·ty
Medical Definition of TWENTY–TWENTY
: having the normal visual acuity of the human eye that according to one common scale can distinguish at a distance of 20 feet characters one-third inch in diameter <twenty–twenty vision>
Variants of TWENTY–TWENTY
twen·ty–twen·ty or 20/20 \ˌtwent-ē-ˈtwent-ē\
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