GIS - Terms

The GIS Dictionary
Compiled by ESRI, a leading provider of GIS software, this glossary covers terms associated with GIS and ESRI software as well as technical terms in general.

UC Berkeley's Dictionary of GIS Abbreviations and Acronyms
This site explains the sometimes vague and confusing acronyms and abbrevbiations used in GIS data and documentation.

AGI GIS Dictionary Compiled by the Association for Geographic Information and the University of Edinburgh Department of Geography.