dif·​fus·​er di-ˈfyü-zər How to pronounce diffuser (audio)
plural diffusers
: one that diffuses: such as
: a device (such as a reflector) for distributing the light of a lamp evenly
: a screen (as of cloth or frosted glass) for softening lighting (as in photography)
: a device (such as slats at different angles) for deflecting air from an outlet in various directions
: a device that produces a fine mist of water and often essential oils
: a device for reducing the velocity and increasing the static pressure of a fluid passing through a system

Examples of diffuser in a Sentence

Recent Examples on the Web Those with thicker, curly hair will need a specific type of brush like the Curls Ultimate Detangler Brush and hair dryer attachments like the diffuser that comes with the Hot Tools Pro Artist Black Gold Ionic Hair Dryer. Madison Yauger, Peoplemag, 3 Nov. 2023 The diffuser also makes an excellent gift for hosts. Sarah Grossbart, wsj.com, 24 Oct. 2023 Try an Amazon-favorite diffuser instead, like this one from Hotel Collection with nearly 400 glowing reviews. Andrea Navarro, Glamour, 10 Oct. 2023 Using only a few drops of essential oil, this diffuser can continuously circulate its aroma for three to four hours. Jenna Clark, Better Homes & Gardens, 6 Sep. 2023 Still others employ diffusers, building-size industrial machines that use high-pressure water to shred the agaves without cooking them at all, thereby extracting tremendous yields and completing the whole operation in just a few hours. Jason O'Bryan, Robb Report, 11 Nov. 2023 Its massive chin, extreme diffuser, and big rear wing provide tons of downforce, and the grille shape and round taillights are obvious GT-R cues. Daniel Golson, The Verge, 27 Oct. 2023 This smart diffuser comes with an LED ambient nightlight that adds a touch of magic to your space. Claire Rutter, Rolling Stone, 25 Oct. 2023 Shop new candles from Jo Malone, Yankee Candle, and Chesapeake Bay, along with diffusers for sprucing up your space. Andrea Navarro, Glamour, 10 Oct. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'diffuser.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1645, in the meaning defined at sense 1

Time Traveler
The first known use of diffuser was in 1645

Dictionary Entries Near diffuser

Cite this Entry

“Diffuser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diffuser. Accessed 3 Dec. 2023.

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