We found 11 dictionaries that define the word rdd:

General (5 matching dictionaries)

1. RDD: Infoplease Dictionary
2. RDD, rdd: Dictionary.com
3. RDD: Wikipedia, the Free Encyclopedia
4. RDD, RDD: Stammtisch Beau Fleuve Acronyms
5. RDD: Wiktionary

Business (1 matching dictionary)

6. Glossary of Education Terms and Acronyms (No longer online)

Miscellaneous (2 matching dictionaries)

7. RDD: Acronym Finder
8. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

9. RDD, RD'd: Urban Dictionary

Tech (2 matching dictionaries)

10. DOD Dictionary of Military Terms: Joint Acronyms and Abbreviations (No longer online)
11. Glossary of Agricultural Terms, Programs and Laws (No longer online)

Definitions from Wiktionary (RDD) ▸ noun:  Synonym of dirty bomb ▸ Words similar to rdd ▸ Usage examples for rdd ▸ Idioms related to rdd ▸ Wikipedia articles (New!) ▸ Popular adjectives describing rdd ▸ Words that often appear near rdd ▸ Rhymes of rdd ▸ Invented words related to rdd