sharp-sightedness
1. sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) • Syn: acuity, visual acuity • Derivationally related forms: sharp-sighted • Hypernyms: sight, vision, visual sense, visual modality • Hyponyms: twenty-twenty, 20/20, oxyopia 2. lively attentiveness • Syn: alertness, on the qui vive • Derivationally related forms: sharp-sighted, alert (for: alertness) • Hypernyms: attentiveness
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