- a white, crystalline substance, C9H8O4, derivative of salicylic acid, used as an anti-inflammatory agent and to relieve the pain of headache, rheumatism, gout, neuralgia, etc.; acetylsalicylic acid.
- an aspirin tablet: I took two aspirin and went right to bed.
- a white crystalline compound widely used in the form of tablets to relieve pain and fever, to reduce inflammation, and to prevent strokes. Formula: CH 3 COOC 6 H 4 COOH
- a tablet of aspirin
