| Noun | 1. | buffered aspirin - aspirin coated with a substance capable of neutralizing acid (trade name Bufferin)acetylsalicylic acid, aspirin, Bayer, Empirin - the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer and Empirin) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets | |