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precision

/pɹɪˈsɪʒ.ən/ noun

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about precision at Wordnik → Where our words come from →

  1. The state of being precise or exact; especially, both exact and accurate.
  2. The ability of a measurement to be reproduced consistently.
    The classic example of the difference between precision and accuracy is that in target practice, if the grouping is tight but the group is off-center, your precision is good but your accuracy needs calibration.
  3. The number of significant digits to which a value may be measured reliably.

adjective

  1. Used for exact or precise measurement.
    precision instruments
  2. Made, or characterized by accuracy.

Origin

From Middle French precision. Equivalent to precise + -ion.

From Wiktionary, via Kaikki.org (CC BY-SA)