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
Or, swap out your mom’s antiquated diffuser plug-ins with this non-toxic alternative. —
Izzy Baskette, PEOPLE, 21 Apr. 2026 Using electric or reed diffusers offers a simple, hands-off method to keep your spring fragrance filling your home. —Olivia McIntosh, Martha Stewart, 16 Apr. 2026 Since mom already has the candle version, gift her the matching reed diffuser to have her fave scent coursing through her space on a regular basis. —Audrey Lee, Architectural Digest, 14 Apr. 2026 Peppermint oil used as aromatherapy should be inhaled directly from the bottle or through a diffuser. —T'keyah Bazin, Verywell Health, 9 Apr. 2026 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.
Izzy Baskette, PEOPLE, 21 Apr. 2026 Using electric or reed diffusers offers a simple, hands-off method to keep your spring fragrance filling your home. —Olivia McIntosh, Martha Stewart, 16 Apr. 2026 Since mom already has the candle version, gift her the matching reed diffuser to have her fave scent coursing through her space on a regular basis. —Audrey Lee, Architectural Digest, 14 Apr. 2026 Peppermint oil used as aromatherapy should be inhaled directly from the bottle or through a diffuser. —T'keyah Bazin, Verywell Health, 9 Apr. 2026 See All Example Sentences for diffuser
Cite this Entry
“Diffuser.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/diffuser. Accessed 25 Apr. 2026.
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