diffuser

noun

dif·​fus·​er di-ˈfyü-zər How to pronounce diffuser (audio)
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 Perhaps an essential oil diffuser is always buzzing in your home, or a cup of tea relaxes you instantly. Maggie Gillette, Better Homes & Gardens, 17 May 2024 The diffuser and the rear spoiler work together to produce a maximum of 158 pounds of downforce on the rear axle at speed. Angus MacKenzie, Robb Report, 12 May 2024 See all Example Sentences for diffuser 

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 28 May. 2024.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!