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
The Rope Light is RGB-addressable and comes in 5m lengths, with a soft silicone diffuser over top that gives it an even glow.
—
Anthony Karcz, Forbes.com, 20 May 2025
For maximum efficiency, the underbody features a flat plate, and inlets push hot air away from the car while the parabolic line along the side directs airflow toward the rear diffuser.
—Kristin Shaw, Popular Science, 7 May 2025
How does a diffuser differ from other hairdryer attachments?
—Georgia Day, Vogue, 14 May 2025
Additionally, the company sells laundry care products, plug-in air fresheners and diffusers, as well as men’s body care including cologne and body wash.
—Veronica Fernandez-Alvarado, Sacbee.com, 5 May 2025
See All Example Sentences for diffuser
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Anthony Karcz, Forbes.com, 20 May 2025
For maximum efficiency, the underbody features a flat plate, and inlets push hot air away from the car while the parabolic line along the side directs airflow toward the rear diffuser.
—Kristin Shaw, Popular Science, 7 May 2025
How does a diffuser differ from other hairdryer attachments?
—Georgia Day, Vogue, 14 May 2025
Additionally, the company sells laundry care products, plug-in air fresheners and diffusers, as well as men’s body care including cologne and body wash.
—Veronica Fernandez-Alvarado, Sacbee.com, 5 May 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 7 Jun. 2025.
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