We found 12 dictionaries that define the word X.400:

General (2 matching dictionaries)

1. X.400: Dictionary.com
2. X.400: Stammtisch Beau Fleuve Acronyms

Business (1 matching dictionary)

3. eyefortransport e-commerce transportation glossary (No longer online)

Computing (7 matching dictionaries)

4. X.400: Free On-line Dictionary of Computing
5. Technology Terms and Acronyms (No longer online)
6. X.400: Computer Telephony & Electronics Dictionary and Glossary
7. Webopedia (No longer online)
8. I T Glossary (No longer online)
9. Technopedia (No longer online)
10. X.400: Encyclopedia

Miscellaneous (1 matching dictionary)

11. X.400: Acronym Finder

Tech (1 matching dictionary)

12. X.400: Webster's New World Telecom Dictionary

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