We found 12 dictionaries that define the word ARRT:

General (6 matching dictionaries)

1. ARRT: Merriam-Webster
2. Arrt, arrt, arrt: Wordnik
3. ARRT: Dictionary.com
4. arrt (m): AllWords.com Multi-Lingual Dictionary
5. ARRT: Merriam-Webster
6. ARRT: Wiktionary

Medicine (3 matching dictionaries)

7. ARRT: Merriam-Webster Medical Dictionary
8. Dorland's Illustrated Medical Dictionary (No longer online)
9. ARRT: Medical dictionary

Miscellaneous (2 matching dictionaries)

10. ARRT: Acronym Finder
11. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

12. Arrt: Urban Dictionary

Definitions from Wiktionary (ARRT) ▸ noun:  Initialism of American Registry of Radiologic Technologists. ▸ noun:  Initialism of Autonomous Rail Rapid Transit. ▸ Words similar to ARRT ▸ Usage examples for ARRT ▸ Idioms related to ARRT ▸ Wikipedia articles (New!) ▸ Popular adjectives describing ARRT ▸ Words that often appear near ARRT ▸ Rhymes of ARRT ▸ Invented words related to ARRT