Oceanography

Glossary of Physical Oceanography
Comprehensive and professional glossary edited by Steven K. Baum, Department of Oceanography, Texas A&M University.
http://stommel.tamu.edu/~baum/paleo/ocean/ocean.html

NOAA's Coral Reef Data Discovery Glossary
Containing over 5,300 technical terms related among others to ecology and oceanography.
http://www.coris.noaa.gov/glossary/

OceanLink Glossary
Glossary with concise definitions of the basic terminology.
http://www.jbpub.com/oceanlink/4e/glossary.cfm