precision

(1) Quality associated with the degree to which repeated computations, estimates or measurements conform to themselves, whether or not their mean approximates to the true value.

(2) Smallest unit of division on a scale of measurement to which a reading is possible either directly or by estimation. (TR)

 

Source:

UNESCO/WMO International Glossary of Hydrology (2nd revised ed., 1992)

Posted on February 23, 2014 .