Today, it seems like every field has its own dictionary or glossary on the Internet. Here are some sources to help you find one that fits your area of interest.

• Webopedia
  
  
  
• Glossaries by Subject
  Language Automation
  
  
• Thesauri
  Brown University Writing Center
  
  
• Astronomy and Mechanic Definitions
  Lycoming College
  
  
• Thermodynamic Definitions
  Lycoming College
  
  
• Relativity/Electricity/Magnetism/Particle Definitions
  Lycoming College
  
  
• Glossary of (comet and) astronomical terms.
  Harvard-Smithsonian Center for Astrophysics
  
  
• Glossary
  Basics of Space Flight
  
  
• Online Glossaries for Statistics and Econometrics
  Oswego State University of New York
  
  
• Glossaries of Economic Terms
  University of Bristol Institute for Learning and Research
  
  
• Archeology-Related Glossaries
  The National Park Service
  
  
• Glossarist
  
  
  
• Dictionaries, Glossaries & Thesauri
  Encyberpedia
  
  
• Internet Glossaries
  WebReference.com
  
  
• University of Washington Faculty Pages
  Dictionaries and Glossaries
  
  

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