10.10 Online Dictionaries

Need a word? The right word? Here are links to some excellent online dictionaries. Some of these dictionaries will allow you to have a "word of the day" sent to you automatically. This service will help you build your vocabulary. Lower down on this list, we have included some specialized dictionaries for technical fields.

• Oxford English Dictionary
  
  
  
• American Heritage Dictionary of the English Language
  
  
  
• Miriam-Webster OnLine
  
  
  
• Cambridge Dictionaries Online
  
  
  
• Dictionary.com
  

Dictionaries for Particular Fields

• 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
  
  
• Dictionaries and Glossaries
  University of Washington Faculty Pages