European Environmental Agency (EEA) Glossary The EEA glossary database contains about 500 English environmental terms with definitions and definition sources etc as well as translations into the 23 EEA-languages. http://glossary.eea.eu.int/EEAGlossary
International glossary of hydrology This edition of the Glossary is only experimental and his free dissemination is strictly limited to national representatives within UNESCO and WMO hydrological programmes for evaluation purposes. http://www.cig.ensmp.fr/~hubert/glu/aglo.htm
Water quality terms Wilkes University, Center for Environmental Quality GeoEnvironmental Sciences and Engineering Department. http://wilkes.edu/~eqc/glossary.htm