achaian
- n a member of one of four linguistic divisions of the prehistoric Greeks
acetamide
- n a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds
acetaminophen
- n an analgesic for mild pain but not for inflammation; also used as an antipyretic; (Datril, Tylenol, Panadol, Phenaphen, Tempra, and Anacin III are trademarks of brands of acetaminophen tablets)
acetanilid
- n a white crystalline compound used as an analgesic and also as an antipyretic