Double Precision

double precision - [computing] The level of coordinate exactness based on the possible number of significant digits that can be stored for each coordinate. Datasets can be stored in either single or double precision. Double-precision geometries store up to 15 significant digits per coordinate (typically 13 to 14 significant digits), retaining the accuracy of much less than 1 meter at a global extent.

[Category=Geospatial ]

Source: esri, 04 April 2012 09:28:37, http://support.esri.com/en/knowledgebase/GISDictionary/term/abbreviation