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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Genericized trademark of German Aspirin, from acetylierte Spirsäure (literally “acetylated spiraeic acid”). The trade name Aspirin is a registered trademark in some countries, but has entered the English language in generic usage, as various German trademarks were nullified in the United States after World War I (see also heroin).
acetylsalicylic acid, Bayer, Empirin, St. Joseph
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Classic usage
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