| a substance, C13H8F2O3, used as an analgesic, antipyretic, and anti-inflammatory drug in the treatment of rheumatoid diseases and other musculoskeletal disorders. |

diflunisal di·flu·ni·sal (dī-fl&oomacr;'nĭ-sāl', -sôl')
n.
A salicylic acid derivative with anti-inflammatory, analgesic, and antipyretic actions.