conditioner

noun

con·​di·​tion·​er kən-ˈdi-sh(ə-)nər How to pronounce conditioner (audio)
: something that conditions
specifically : a preparation used to improve the condition of hair

Examples of conditioner in a Sentence

Recent Examples on the Web
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In some cases, firefighters had to push air conditioner units out of windows to get residents out, their union’s president said. Andy Rose, CNN Money, 14 July 2025 Amika’s new Frizz-Me-Not collection — featuring a new shampoo/conditioner combo as well as an anti-frizz treatment — promises to lock out frizz for up to 72-hours and leave hair looking glossy and smooth. Angela Lei, Forbes.com, 13 July 2025 This shampoo and conditioner set works well as a detox, removing residual product. People Staff, People.com, 11 July 2025 Air conditioners that suddenly shut off in the tropical heat. Gisela Salomon, Los Angeles Times, 11 July 2025 See All Example Sentences for conditioner

Word History

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of conditioner was in 1888

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Cite this Entry

“Conditioner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/conditioner. Accessed 29 Jul. 2025.

Kids Definition

conditioner

noun
con·​di·​tion·​er kən-ˈdish-(ə-)nər How to pronounce conditioner (audio)
: something that conditions
especially : a preparation used to improve the condition of hair

More from Merriam-Webster on conditioner

Last Updated: - Updated example sentences
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