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]

The Collaborative International Dictionary of English. 2000.