ˌībyu̇ˈprōfə̇n, -ˌfen, -ˌfēn noun
( -s )
Etymology: i so- + bu tyl- + pro pionic acid + -fen (alteration of phenyl )
: a nonsteroidal anti-inflammatory drug C 13 H 18 O 2 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