: something that conditions
specifically : a preparation used to improve the condition of hair

Examples of conditioner in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Campers can turn on the vehicle's air conditioner or heater and run it for up to eight hours when the vehicle is parked and turned off. — New Atlas, 6 Nov. 2026 Gone are the days when a reliable shampoo, conditioner, and hair mask were enough to call it a routine. — Amanda Le, InStyle, 5 Nov. 2026 For decades, chlorofluorocarbons (CFCs) and other ozone-depleting compounds were widely used in aerosol sprays, foams, air conditioners, and refrigerators, causing significant reductions in ozone levels. — Dan Peck, ABC News, 4 Nov. 2026 Between regular blowouts, hot tools, and the occasional color appointment, the damage had built up slowly, and my conditioner at the time wasn’t doing much to help. — Valeriya Chupinina, Vogue, 4 Nov. 2026 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

Browse Nearby Words

Cite this Entry

“Conditioner.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/conditioner. Accessed 13 Nov. 2026.

Kids Definition

conditioner

noun
: something that conditions
especially : a preparation used to improve the condition of hair
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