| Noun | 1. | propanoic acid - a liquid fatty acid found in milk and sweat and in fuel distillatesfenoprofen, fenoprofen calcium, Nalfon - a nonsteroidal anti-inflammatory drug (trade name Nalfon) used in the treatment of arthritis and other painful inflammatory disorders Ansaid, flurbiprofen - a nonsteroidal anti-inflammatory drug (trade name Ansaid) that is administered only orally Naprosyn, naproxen - a nonsteroidal anti-inflammatory drug (trade name Naprosyn) used in the treatment of arthritis and musculoskeletal inflammation and moderate pain Daypro, oxaprozin - a nonsteroidal anti-inflammatory drug (trade name Daypro) carboxylic acid - an organic acid characterized by one or more carboxyl groups | |