as·pi·rin (ăspər-ĭn, -prĭn)
n. pl. aspirinor as·pi·rins
1. A white, crystalline compound, C9H8O4, derived from salicylic acid and commonly used in tablet form to relieve pain and reduce fever and inflammation. It is also used as an antiplatelet agent. Also called acetylsalicylic acid.
2. A tablet of aspirin.
[Originally a trademark.]
Word History: The English word aspirin comes from the German trademark Aspirin, which is made up of elements from an obsolete German term for acetylsalicylic acid, acetylierte Spirsäure, literally, “acetylated Spiraea-acid.” Acetylsalicylic acid was first isolated in a species of meadowsweet, Filipendula ulmaria, which was formerly classified in the genus Spiraea, the genus that includes many of the garden plants called spirea.
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