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accuracy

 - 3 dictionary results

ac⋅cu⋅ra⋅cy

  [ak-yer-uh-see]
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–noun, plural -cies.
1. the condition or quality of being true, correct, or exact; freedom from error or defect; precision or exactness; correctness.
2. Chemistry, Physics. the extent to which a given measurement agrees with the standard value for that measurement. Compare precision (def. 6).
3. Mathematics. the degree of correctness of a quantity, expression, etc. Compare precision (def. 5).
Origin:
1655–65; accur(ate) + -acy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ac·cu·ra·cy   (āk'yər-ə-sē)   
n.  

  1. Conformity to fact.

  2. Precision; exactness.

  3. The ability of a measurement to match the actual value of the quantity being measured.

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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Computing Dictionary

accuracy mathematics
How close to the real value a measurement is.
Compare precision.
(1998-04-19)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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