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| pre·ci·sion [ prə sí'n ] |
noun |
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1. exactness: exactness or accuracy
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2. mathematics accuracy in calculation: the accuracy to which a calculation is performed, specifying the number of significant digits with which the result is expressed
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adjective |
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relating to exactness or accuracy: allowing for, made with, or requiring great exactness or accuracy
 precision instruments
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| [Late 16th century. Via French< Latin praecision-< praecis-, past participle of praecidere (see precise)] |
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