Main Entry: ¹pre·ci·sion

Pronunciation: \pri-ˈsi-zhən\

Function: noun

Date: 1740

1 : the quality or state of being precise : exactness
2 a : the degree of refinement with which an operation is performed or a measurement stated — compare accuracy 2b b : the accuracy (as in binary or decimal places) with which a number can be represented usually expressed in terms of the number of computer words available for representation <double precision arithmetic permits the representation of an expression by two computer words>
3 : relevance 2

— pre·ci·sion·ist \-ˈsi-zhə-nist, -ˈsizh-nist\ noun