The USGS is a science organization that provides impartial information on the health of our ecosystems and environment, the natural hazards that threaten us, the natural resources we rely on, the impacts of climate and land-use change, and the core science systems that help us provide timely, relevant, and useable information.

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USGS Handbook, Glossary of Terms    (89 definitions)
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Energy Glossary and Acronym List    (117 definitions)
Jun 26, 2016
Water Science Glossary of Terms    (161 definitions)
May 2, 2016
Volcano Hazards Program Glossary    (113 definitions)
Feb 29, 2016
Genetics and Genomics Glossary    (0 definitions)
Jan 1, 2007