: 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.
Other offerings include hydrating and volumizing shampoo and conditioner duos; a Deep Moisture Repair Hair Mask; a SahaScalp purifying scrub, and a recent trio of hair and body fragrance mists inspired by different Indian cities and states. — Noor Lobad, Footwear News, 1 Oct. 2026 Outdoor furniture gets covered up, sweaters come out of storage, and your window air conditioner needs to come out of the window. — Kayla Hayempour, NBC news, 28 Sep. 2026 That equates to removing the electricity demand of roughly 50,000 window air conditioners from the grid or powering approximately 34,000 households for four hours each day during peak demand. — Maria Mocerino, Interesting Engineering, 27 Sep. 2026 The structure’s aluminum alloy windows and doors include mosquito screens, and the door frame supports an air conditioner bracket for additional climate control on hot summer days. — Sarah Dimuro, PEOPLE, 26 Sep. 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 2 Oct. 2026.

Kids Definition

conditioner

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