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 diffuser uses 100% pure essential oils to fragrance your home, and its matte ceramic finish fits into any space like a piece of sophisticated decor.
—
Annie Blackman, Allure, 24 Jan. 2025
Owners can comfort their dogs and reduce anxiety by creating a calm environment or using aids like pheromone diffusers.
—David Faris, Newsweek, 18 Jan. 2025
The Ruan Hoffmann collection features two candles, a diffuser, two special plates, a trio of vide poche plates, a duo of medium bowls, mugs and a coupe bowl — each hand-sculpted by its master artisans.
—Sofia Celeste, WWD, 16 Jan. 2025
Cella recommends oil diffusers on a coffee table for a subtle experience, and candles are always a go-to for relaxation—stock up on lavender, vanilla, eucalyptus, and jasmine.
—Kristine Gill, Better Homes & Gardens, 14 Jan. 2025
See all Example Sentences for diffuser 
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.
Annie Blackman, Allure, 24 Jan. 2025
Owners can comfort their dogs and reduce anxiety by creating a calm environment or using aids like pheromone diffusers.
—David Faris, Newsweek, 18 Jan. 2025
The Ruan Hoffmann collection features two candles, a diffuser, two special plates, a trio of vide poche plates, a duo of medium bowls, mugs and a coupe bowl — each hand-sculpted by its master artisans.
—Sofia Celeste, WWD, 16 Jan. 2025
Cella recommends oil diffusers on a coffee table for a subtle experience, and candles are always a go-to for relaxation—stock up on lavender, vanilla, eucalyptus, and jasmine.
—Kristine Gill, Better Homes & Gardens, 14 Jan. 2025
See all Example Sentences for diffuser
Dictionary Entries Near diffuser
Cite this Entry
“Diffuser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diffuser. Accessed 6 Feb. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share