precision

(prĭ-sĭzh'ən)
n.

1. The state or quality of being precise; exactness.
2. 1. The ability of a measurement to be consistently reproduced.
   2. The number of significant digits to which a value has been reliably measured.

adj.

1. Used or intended for accurate or exact measurement: a precision tool.
2. Made so as to vary minimally from a set standard: precision components.
3. Of or characterized by accurate action: precision bombing.

[Latin praecīsiō, praecīsiōn-, a cutting off, from praecīsus, past participle of praecīdere, to cut off. See precise.]

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The number of digits used to express the fractional part of a number. The more digits, the more precision. See single precision and double precision. See also accuracy.

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noun

Freedom from error: accuracy, accurateness, correctness, exactitude, exactness, preciseness, rightness. See correct/incorrect.

n

Definition: accuracy
Antonyms: imprecision, inaccuracy, inexactness

[Ge]

In archaeological science, precision is the degree to which random errors effect a set of measurements; high precision means that the overall random error is small and that replicated measurements will provide closely similar results. A random error in this sense is one which, when averaged, tends to zero as the number of measurements averaged is increased. High precision does not, therefore, mean that the measurements will necessarily be close to the true value; systematic errors may give low accuracy. In other words, precise results are not ecessarily accurate results and vice versa. compare accuracy.

The number of significant figures to which data or readings are taken. The higher the number of significant figures, the greater the precision. Compare accuracy.

1. a measure of the sharpness (or certainty) of a measurement — a precise measurement may nevertheless be inaccurate (e.g. if there are unrecognized errors in the measurement).
2. or selectivity (in informatics) the proportion of the predictions made by an algorithm that are correct (i.e. discrimination of true matches from false): true positives/(true positives + false positives).

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The quality of being sharply defined by virtue of exact detail, an important criteria of a diagnostic test. A precise test is free from random error. Precision is a requirement of accuracy.

For a list of words related to precision, see:

• Principles of Mechanics, Waves, and Measurement - precision: degree of exactitude and reproducibility in measured data; agreement between two or more measurements of same quantity made in same way

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See words rhyming with "precision."

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Dansk (Danish)
n. - præcision
adj. - præcisions-

Nederlands (Dutch)
precisie, nauwkeurigheid

Français (French)
n. - précision
adj. - de précision

Deutsch (German)
n. - Genauigkeit
adj. - Präzisions...

Ελληνική (Greek)
n. - ακρίβεια, ακριβολογία

Italiano (Italian)
precisione

Português (Portuguese)
n. - precisão (f)

Русский (Russian)
точность

Español (Spanish)
n. - precisión, exactitud
adj. - de precisión

Svenska (Swedish)
n. - precision, noggrannhet

中文（简体）(Chinese (Simplified))
精密, 精确度, 精确, 精确的, 精密的

中文（繁體）(Chinese (Traditional))
n. - 精密, 精確度, 精確
adj. - 精確的, 精密的

한국어 (Korean)
n. - 정확, 정밀
adj. - 정밀한

日本語 (Japanese)
n. - 正確, 精度
adj. - 精密な, 正確に行なう

العربيه (Arabic)
‏(الاسم) دقه‏

עברית (Hebrew)
n. - ‮דיוק, דרגת הדיוק‬
adj. - ‮של דיוק‬

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