DICT.TW Dictionary Taiwan

 acu·ity /əˈkjuəti, æ-/
 敏銳,激烈,苛刻

 acu·ity /əˈkjuətɪ/ 名詞
 銳度,敏度,分辨能力

 A·cu·i·ty n.  Sharpness or acuteness, as of a needle, wit, etc.
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 acuity
      n 1: sharpness of vision; the visual ability to resolve fine
           detail (usually measured by a Snellen chart) [syn: visual
           acuity, sharp-sightedness]
      2: a quick and penetrating intelligence; "he argued with great
         acuteness"; "I admired the keenness of his mind" [syn: acuteness,
          sharpness, keenness]