Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Acuteness of vision or perception; keenness.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Sharpness or acuteness, as of a needle, wit, etc.

from the GNU version of the Collaborative International Dictionary of English

  • n. Sharpness or acuteness, as of a needle, wit, etc.

from The Century Dictionary and Cyclopedia

  • n. Sharpness; acuteness.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a quick and penetrating intelligence
  • n. sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)

Etymologies

Middle English acuite, from Old French, ultimately from Latin acūtus, sharp; see acute.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French acuité, from Medieval Latin acuitas, irreg., from Latin acuō ("sharpen"). (Wiktionary)

Examples

Comments

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  • It was the precise photographic picture of that other room. Everything in it rose before him and pressed itself upon his vision with the same acuity of distinctness as the objects surrounding him.

    - Edith Wharton, The Reef

    June 18, 2008