We found 10 dictionaries that define the word MPEG-4:

General (2 matching dictionaries)

1. MPEG-4: Dictionary.com
2. MPEG-4, Mpeg-4: Wikipedia, the Free Encyclopedia

Computing (3 matching dictionaries)

3. MPEG-4: Free On-line Dictionary of Computing
4. Webopedia (No longer online)
5. MPEG-4: Encyclopedia

Medicine (1 matching dictionary)

6. online medical dictionary (No longer online)

Miscellaneous (1 matching dictionary)

7. MPEG-4: Acronym Finder

Tech (3 matching dictionaries)

8. MPEG-4: Webster's New World Telecom Dictionary
9. Sweetwater Music (No longer online)

Definitions from Wikipedia (MPEG-4) ▸ noun:  a group of international standards for the compression of digital audio and visual data, multimedia systems, and file storage formats. Phrases: mpeg-4 aac main profile, mpeg-4 aac ssr, mpeg-4 harmonic vector excitation, mpeg-4 hiln, mpeg-4 hvxc, more... ▸ Words similar to MPEG-4 ▸ Usage examples for MPEG-4 ▸ Idioms related to MPEG-4 ▸ Wikipedia articles (New!) ▸ Popular adjectives describing MPEG-4 ▸ Words that often appear near MPEG-4 ▸ Rhymes of MPEG-4 ▸ Invented words related to MPEG-4