A search of multiple databases to find definitions or string matches, with a variety of search specifications available. Features tools to integrate the service with sites or browsers.
The Glossarist Searchable directory of glossaries and topical dictionaries containing terms and definitions on hundreds of subjects.
Research-It Includes several dictionaries and a thesaurus as well as online tools for shipping and mailing, currency exchange, and language translation.
Lexicool Searchable directory of bilingual and multilingual dictionaries.