Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: iso- + butyl type of chemical (19-21 centuries) + propionic describing a type of chemical (19-21 centuries) + phenyl type of chemical (19-21 centuries)

ibuprofen

 noun
     
i‧bu‧pro‧fen [uncountable]
a medicine that reduces pain, inflammation, and fever
Definition from the Longman Dictionary of Contemporary English
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