GlobalDictionary.com

Online Dictionaries, Translators and References
Online dictionaries, translators, references accessable from a small pop-window. Requires use of a browser with Javascript enabled.
www.esldesk.com/

Terminology Collection: Online Dictionaries
Glossaries for several languages and for specialized fields from the University of Vaasa, Finland.
www.uwasa.fi/

The Century Dictionary Online
Free 500,000 word dictionary of English with an encyclopedia and world atlas. Uses DjVu and JPEG formats to display page images. Has headword lookup and full text search of 22 million words of underlying text.
www.global-language.com/

Gaelic Dictionaries Online
List of Manx, Scottish, and Irish Gaelic dictionaries.
www.ceantar.org/

Online English-Japanese Dictionaries
Free Light Software’s glossaries of geography and travel, history and traditions, manga and video games, and politics and media. (GIF)
www.hikyaku.com/

Sign Language Dictionaries Online
Reviews of several sites which feature American Sign Language dictionaries. From about.com. Links.
deafness.about.com/

Webster's Online Dictionary: The Rosetta Edition
This database doubled with a metasearch tool extracts records from a variety of online and public-domain paper dictionaries, both general and specialized. It offers English definitions, as well as translations from/to a hundred languages.
www.websters-online-dictionary.com/

Svetlozar Online's Abbreviation Glossary
Computer and telecommunications acronyms and their meanings. Searchable and browsable.
www.svetlozar.com/

ESAURUS Online English-Chinese Medical Dictionary
Wong Kia Boon’s glossary of Chinese terminology from PRC, Taiwan, and Hong Kong. (GIF)
www.esaurus.org/

The Newbury House Online Dictionary
Search over 40,000 entries to get clear concise definitions and when available related pictures.
nhd.heinle.com/