diffuser
noun
dif·fus·er
di-ˈfyü-zər 
plural diffusers
1
: one that diffuses: such as
a
: a device (such as a reflector) for distributing the light of a lamp evenly
b
: a screen (as of cloth or frosted glass) for softening lighting (as in photography)
c
: a device (such as slats at different angles) for deflecting air from an outlet in various directions
d
: a device that produces a fine mist of water and often essential oils
2
: 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
If a house full of teenagers has the living room smelling like gym bags and snack wrappers, this aromatherapy diffuser is the effortless way to bring a bit of spa-like calm (and much better scent) back into her space.
—
Christa Joanna Lee, Glamour, 15 Apr. 2025
Simply place a few drops of a favorite essential oil blend onto the accompanying diffuser disc, sit back, and take a deep breath of lightly scented air.
—Jennifer Hussein, Allure, 13 Apr. 2025
This cool mist diffuser, $18.97 at Walmart, comes in a beautiful green shade and has five light settings to create more ambiance in your room.
—Nora Colomer, Fox News, 19 Mar. 2025
The lower half of the vehicle features a sculptural shape that calls to the mind the curvaceous C3, with prominent air intakes up front and an even larger diffuser in the back.
—Bryan Hood, Robb Report, 7 Apr. 2025
See All Example Sentences for diffuser
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Christa Joanna Lee, Glamour, 15 Apr. 2025
Simply place a few drops of a favorite essential oil blend onto the accompanying diffuser disc, sit back, and take a deep breath of lightly scented air.
—Jennifer Hussein, Allure, 13 Apr. 2025
This cool mist diffuser, $18.97 at Walmart, comes in a beautiful green shade and has five light settings to create more ambiance in your room.
—Nora Colomer, Fox News, 19 Mar. 2025
The lower half of the vehicle features a sculptural shape that calls to the mind the curvaceous C3, with prominent air intakes up front and an even larger diffuser in the back.
—Bryan Hood, Robb Report, 7 Apr. 2025
See All Example Sentences for diffuser
Cite this Entry
“Diffuser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diffuser. Accessed 29 Apr. 2025.
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