Accuracy and Precision

Accuracy

In the fields of science, engineering, industry and statistics, the accuracy of a measurement system is the degree of closeness of measurements of a quantity to that quantity's actual (true) value.

accuracy n 1: the quality of nearness to the truth or the true value; "he was beginning to doubt the accuracy of his compass"; "the lawyer questioned the truth of my account" [syn: {truth}] [ant: {inaccuracy}] 2: (mathematics) the number of significant figures given in a number; "the atomic clock enabled scientists to measure time with much greater accuracy"

58 Moby Thesaurus words for "accuracy": absoluteness, attention to detail, attention to fact, care for truth, circumstantiality, conscientiousness, correctness, criticality, criticalness, definiteness, delicacy, detail, exactingness, exactitude, exactness, exquisiteness, faithfulness, faultlessness, fidelity, fineness, finicality, finicalness, finickiness, finickingness, flawlessness, fussiness, literalism, literality, literalness, mathematical precision, meticulousness, minuteness, minuteness of detail, niceness, nicety, particularity, particularness, perfection, preciseness, precisianism, precision, punctiliousness, punctuality, refinement, right, rightness, rigidity, rigidness, rigor, rigorousness, scrupulosity, scrupulousness, severity, specificity, strictness, subtlety, textualism, the letter

Accuracy \Ac"cu*ra*cy\ (#; 277), n. [See {Accurate}.] The state of being accurate; freedom from mistakes, this exemption arising from carefulness; exact conformity to truth, or to a rule or model; precision; exactness; nicety; correctness; as, the value of testimony depends on its accuracy. [1913 Webster] The professed end [of logic] is to teach men to think, to judge, and to reason, with precision and accuracy. --Reid. [1913 Webster] The accuracy with which the piston fits the sides. --Lardner. [1913 Webster]

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

Precision

;Concepts

precision n : the quality of being reproducible in amount or performance; "he handled it with the preciseness of an automaton"; "note the meticulous precision of his measurements" [syn: {preciseness}] [ant: {impreciseness}, {impreciseness}]

91 Moby Thesaurus words for "precision": absoluteness, accuracy, allocation, assignment, attention, attention to detail, attention to fact, attribution, care, care for truth, carefulness, censoriousness, choosiness, circumstantiality, conscientiousness, correctness, criticality, criticalness, definiteness, delicacy, denomination, designation, detail, determination, discriminatingness, discrimination, discriminativeness, exactingness, exactitude, exactness, explicitness, exquisiteness, faithfulness, fastidiousness, faultlessness, fidelity, fineness, finicality, finicalness, finickiness, finickingness, fixing, flawlessness, fussiness, heed, literalism, literality, literalness, mathematical precision, meticulousness, minuteness, niceness, nicety, particularity, particularness, perfection, perfectionism, pinning down, preciseness, precisianism, priggishness, prudishness, punctilio, punctiliousness, punctuality, purism, puritanism, refinement, right, rightness, rigidity, rigidness, rigor, rigorousness, scrupulosity, scrupulousness, selection, selectiveness, selectivity, sensitivity, severity, signification, specification, stipulation, strictness, subtlety, taste, textualism, the letter, unambiguousness, unerringness

Precision \Pre*ci"sion\, n. [Cf. F. pr['e]cision, L. praecisio a cutting off. See {Precise}.] The quality or state of being precise; exact limitation; exactness; accuracy; strict conformity to a rule or a standard; definiteness. [1913 Webster] I have left out the utmost precisions of fractions. --Locke. [1913 Webster] Syn: Preciseness; exactness; accuracy; nicety. Usage: {Precision}, {Preciseness}. Precision is always used in a good sense; as, precision of thought or language; precision in military evolutions. Preciseness is sometimes applied to persons or their conduct in a disparaging sense, and precise is often used in the same way. [1913 Webster]

precision The number of decimal places to which a number is computed. Compare {accuracy}. (1998-04-19)

Data Sources:

  • accuracy: WordNet (r) 2.0
  • accuracy: Moby Thesaurus II by Grady Ward, 1.0
  • accuracy: The Collaborative International Dictionary of English v.0.44
  • accuracy: The Free On-line Dictionary of Computing (27 SEP 03)
  • precision: WordNet (r) 2.0
  • precision: Moby Thesaurus II by Grady Ward, 1.0
  • precision: The Collaborative International Dictionary of English v.0.44
  • precision: The Free On-line Dictionary of Computing (27 SEP 03)

Currently unrated



Your Comparisons - Accuracy And Precision