There are multiple definitions:

1. Royal Association for Disability and Rehabilitation(English)

   • Disability, Rehabilitation, Organizations (documentation)

2. Rapid Assessment of Disease Activity in Rheumatology(English)

   • a questionnaire that measures joint pain/tenderness and clinical status
   • RA, RAC, RAPID3
   • Rheumatology, Questionnaire
   • https://pubmed.…h.gov/10606362/