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Noun: acuity  u'kyoo-u-tee
  1. Sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
    - visual acuity, sharp-sightedness
  2. A quick and penetrating intelligence
    "he argued with great acuity";
    - acuteness, sharpness, keenness

Derived forms: acuities

Type of: intelligence, sight, vision, visual modality, visual sense

Encyclopedia: Acuity