Main Entry:

as·pi·rin

Pronunciation:

\ˈas-p(ə-)rən\

Function:

noun

Inflected Form(s):

plural aspirin or aspirins

Etymology:

International Scientific Vocabulary, from acetyl + spiraeic acid (former name of salicylic acid), from New Latin Spiraea, genus of shrubs — more at spirea

Date:

1899

1 : a white crystalline derivative C₉H₈O₄ of salicylic acid used for relief of pain and fever 2 : a tablet of aspirin