ben·​zo·​yl | \ ˈben-zə-ˌwil How to pronounce benzoyl (audio) , -zō-ˌil, -ˌzȯil How to pronounce benzoyl (audio) \

Definition of benzoyl

: the acyl radical of benzoic acid

Examples of benzoyl in a Sentence

Recent Examples on the Web Follow with an oil-free moisturizer, then dab a benzoyl-peroxide spot treatment like Clinique Acne Solutions Emergency Gel-Lotion, $17, on zits. Cara Litke Sullivan, Redbook, 14 July 2015 Having sensitive acne-prone skin — the kind that freaks out within ten feet of benzoyl peroxide. Stephanie Saltzman, Allure, 28 Aug. 2017 Then at night, apply a benzoyl peroxide treatment to banish bacteria. Nicole Catanese, Cosmopolitan, 24 Aug. 2017 But why use retinoids and not your classic salicylic acid or benzoyl peroxide? Chloe Metzger, Marie Claire, 25 July 2017 According to the American Academy of Dermatology, benzoyl peroxide can remove the bacteria that causes acne. Janell M. Hickman, Seventeen, 23 May 2017 There are certain ingredients that have proven themselves in clinical trials (benzoyl peroxide or glycolic or salicylic acid for acne) — use them. Allure, 19 June 2017 Rather than squeezing, soak a cotton swab in benzoyl peroxide and dab it on the zit. Janell M. Hickman, Seventeen, 23 May 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'benzoyl.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of benzoyl

1837, in the meaning defined above

History and Etymology for benzoyl

German, from Benzoësäure benzoic acid + Greek hylē matter, literally, wood

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Time Traveler for benzoyl

Time Traveler

The first known use of benzoyl was in 1837

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Dictionary Entries Near benzoyl



benzoyl acetyl peroxide

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Cite this Entry

“Benzoyl.” Dictionary, Merriam-Webster, Accessed 25 Jun. 2022.

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More Definitions for benzoyl


ben·​zo·​yl | \ ˈben-zə-ˌwil How to pronounce benzoyl (audio) , -ˌzȯil How to pronounce benzoyl (audio) \

Medical Definition of benzoyl

: the radical C6H5CO of benzoic acid


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