acetaminophen

noun acet·amin·o·phen \ə-ˌsēt-ə-ˈmin-ə-fən, ˌas-ət-\

Medical Definition of ACETAMINOPHEN

: a crystalline compound C₈H₉NO₂ that is a hydroxy derivative of acetanilide and is used in chemical synthesis and in medicine instead of aspirin to relieve pain and fever—called also paracetamol; see liquiprin, panadol, tylenol

Learn More About

Dictionary: Definition of "acetaminophen"

Nglish: Translation of "acetaminophen" for Spanish speakers

Browse

Seen & Heard

What made you want to look up acetaminophen? Please tell us where you read or heard it (including the quote, if possible).

View Seen & Heard Highlights from Around the Site

Test Your Vocabulary!

10 Charming Words for Nasty People

Put-downs with flair

Learn More

When "Literally" isn't, well, literal

How to use a word that (literally) drives some people nuts.

Watch Now

Know what this is?

Test your vocab with our fun, fast game

Go Play

Fear of cats?

Ailurophobia, and 9 other unusual fears

Learn More