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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As whole house fans and swamp coolers can suck additional pollutants inside, the department recommends using air purifiers or air conditioners as alternatives when possible. Corinne Purtill, Los Angeles Times, 4 July 2026 In a post shared on X on Wednesday, July 1, Mamdani urged New Yorkers to set their air conditioners to 78 degrees, reduce electricity use and unplug unused electronics as temperatures continue to climb. Angelique Brenes, PEOPLE, 3 July 2026 But if ventilation is blocked or poor, hot air becomes trapped beneath the roof, increasing attic temperatures and forcing the air conditioner to work harder to keep the entire home comfortable. Kamron Sanders, The Spruce, 3 July 2026 In the early days of the latest heat wave in Germany, Ebbecke and her husband invested in a small air conditioner, but even that provided little relief, especially for the couple's toddler. Melina Khan, USA Today, 2 July 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 5 Jul. 2026.

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

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