precision
n. · adj.-
1 exactness (n.) C1 Advanced Formalthe quality of being very accurate and careful in what you do.
the quality of being precise or exact; the state of being both accurate and detailed in execution or description.
ExampleThe surgeon performed the operation with great precision.
ExampleThe legal document was drafted with such precision that there was no room for misinterpretation by the opposing counsel.
- accuracy
- exactness
- carefulness
- imprecision
- vague
- inaccuracy
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2 scientific consistency (n.) C1 Advanced Technical Sciencehow close several measurements are to each other.
the ability of a measurement to be reproduced consistently under unchanged conditions; distinct from accuracy, which measures closeness to a true value.
ExampleThe lab results showed high precision, as every test gave the same number.
ExampleWhile the instrument displayed high precision by returning consistent readings, its lack of calibration meant the accuracy remained poor.
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3 significant digits (n.) C2 Proficiency Technical Maththe number of digits used to show how exact a measurement is.
the number of significant digits or decimal places to which a value is measured or expressed.
ExampleThe computer calculates the trajectory of the rocket with double precision.
ExampleThe software allows users to adjust the level of numerical precision depending on the complexity of the statistical model being tested.
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4 highly accurate tools (adj.) C1 Advanced Technicaldescribing a tool or machine made to be very exact.
designed for or capable of exact measurement or operation; characterized by high accuracy.
ExampleThe factory uses precision tools to make the tiny parts for watches.
ExampleThe aerospace industry relies on precision engineering to ensure that every component fits perfectly within the engine assembly.
From Middle French precision. Equivalent to precise + -ion.