acuity Meaning, Definition & Usage

  1. noun sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)
    sharp-sightedness; visual acuity.
  2. noun a quick and penetrating intelligence
    keenness; sharpness; acuteness.
    • he argued with great acuteness
    • I admired the keenness of his mind

WordNet

A*cu"i*ty noun
Etymology
LL. acuitas: cf. F. acuité.
Definitions
  1. Sharpness or acuteness, as of a needle, wit, etc.

Webster 1913