Main Entry: ibu·pro·fen

Pronunciation: \ˌī-byu̇-ˈprō-fən\

Function: noun

: a nonsteroidal anti-inflammatory drug C₁₃H₁₈O₂ used in over-the-counter preparations to relieve pain and fever and in prescription strength especially to relieve the symptoms of rheumatoid arthritis and degenerative arthritis—see advil, motrin