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acuity

 - 5 dictionary results

a⋅cu⋅i⋅ty

  [uh-kyoo-i-tee]
Use acuity in a Sentence
–noun
sharpness; acuteness; keenness: acuity of vision; acuity of mind.
Origin:
1375–1425; late ME acuite < OF < ML, LL acuitās, equiv. to L acu(ere) to sharpen or acū(tus) sharpened (see acute ) + -itās -ity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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a·cu·i·ty   (ə-kyōō'ĭ-tē)   
n.  Acuteness of vision or perception; keenness.

[Middle English acuite, from Old French, ultimately from Latin acūtus, sharp; see acute.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

acuity 
1543, from M.Fr. acuité, from M.L. acuitatem (nom. acuitas) "sharpness," from L. acus "needle," acuere "to sharpen," from PIE base *ak- "rise to a point, be sharp" (see acrid).
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: acu·ity
Pronunciation: &-'kyü-&t-E
Function: noun
Inflected Form: plural -ities
: keenness of senseperception <acuity of hearing> —see VISUAL ACUITY
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

acuity a·cu·i·ty (ə-ky&oomacr;'ĭ-tē)
n.
Sharpness, clearness, and distinctness of perception or vision.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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