Showing results for acetaminophen. Search instead for acetaminophens.

acetaminophen

American

[uh-see-tuh-min-uh-fuhn] / əˌsi təˈmɪn ə fən /

noun

Pharmacology.

a crystalline substance, C 8 H 9 NO 2 , used as a headache and pain reliever and to reduce fever.

acetaminophen Scientific

/ ə-sē′tə-mĭn′ə-fən,ăs′ə- /

A crystalline compound used in medicine to relieve pain and reduce fever. Chemical formula: C ₈ H ₉ NO ₂.

Etymology

Origin of acetaminophen

First recorded in 1955–60; acet- + amino- + phen(ol)

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

acetaminophen

Scientists have studied a potential relationship between acetaminophen use and neurodevelopmental disorders for decades.

From The Wall Street Journal ● Jul. 13, 2026

"And we are certainly not deciding the approach that policymakers concerned with protecting public health should take to regulating the use of acetaminophen."

From Barron's ● Jul. 13, 2026

A Kenvue spokesman said the ruling Monday “does not change the fact that credible, independent science shows no proven link between taking acetaminophen and autism or attention-deficit hyperactivity disorder.”

From The Wall Street Journal ● Jul. 13, 2026

Could his trouble pronouncing acetaminophen be a phonemic paraphasic error?

From Slate ● Jan. 26, 2026

Those concerns were fueled by earlier studies that found small statistical links between acetaminophen use in pregnancy and autism diagnoses.

From Science Daily ● Jan. 19, 2026

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023