We found 6 dictionaries that define the word R4:

General (2 matching dictionaries)

1. R4: Dictionary.com
2. R4 (Canberra), R4 (New York City Subway car), R4 (Rodalies de Catalunya), R4 (disambiguation), R4: Wikipedia, the Free Encyclopedia

Business (1 matching dictionary)

3. R4: Financial dictionary

Miscellaneous (1 matching dictionary)

4. R4: Acronym Finder

Science (1 matching dictionary)

5. R4: Cytokines & Cells Online Pathfinder Encyclopaedia

Slang (1 matching dictionary)

6. R4: Urban Dictionary

Phrases: Exotic R4, Vektor R4, Remington R4, R4 cartridge, Jaguar R4, more... ▸ Words similar to R4 ▸ Usage examples for R4 ▸ Idioms related to R4 ▸ Wikipedia articles (New!) ▸ Words that often appear near R4 ▸ Rhymes of R4 ▸ Invented words related to R4