Definition of aspirin noun from the Oxford Advanced Learner's Dictionary

 

aspirin

 noun
noun
BrE BrE//ˈæsprɪn//
 
; NAmE NAmE//ˈæsprɪn//
 
; BrE BrE//ˈæspərɪn//
 
; NAmE NAmE//ˈæspərɪn//
 
[uncountable, countable](pl. aspirin, aspirins)
 
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a drug used to reduce pain, fever and inflammation Do you have any aspirin? Take two aspirin(s) for a headache. Word Origin late 19th cent.: from German, from acetylierte Spirsäure ‘acetylated salicylic acid’ (the element Spir- being from the plant genus name Spiraea).Extra examples Dissolve two aspirin in water. Never give aspirin to a child under twelve. She took an aspirin and went to bed.
See the Oxford Advanced American Dictionary entry: aspirin