visual acuity
English Thesaurus
1. sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) (noun.cognition)
| hypernym | : | sight, vision, visual modality, visual sense, |
| definition | : | the ability to see; the visual faculty (noun.cognition) |
| hyponym | : | 20/20, twenty-twenty, |
| definition | : | normal visual acuity, as measured by the ability to read charts at a distance of 20 feet (noun.cognition) |
| hyponym | : | oxyopia, |
| definition | : | unusually acute vision (noun.cognition) |
| derivation | : | argus-eyed, hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted, |
| definition | : | having very keen vision (adj.all) |
| derivation | : | argus-eyed, hawk-eyed, keen-sighted, lynx-eyed, quick-sighted, sharp-eyed, sharp-sighted, |
| definition | : | having very keen vision (adj.all) |
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