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diffuser JUST WRITTEN FOR YOU

/dɪˈfʌsər/ · dif·fu·ser
noun
  1. A device that disperses or scatters a substance, such as air, water, or a gas, over a surface or area. The air diffuser in the room helped to distribute the air evenly, eliminating any drafts.
noun
  1. A device that disperses or scatters light, such as a diffuser lens in photography or a diffuser screen in lighting. The photographer used a diffuser to soften the harsh light and create a more flattering effect on the subject.
noun
  1. A device that disperses or scatters sound, such as a diffuser panel in acoustics or a diffuser screen in audio equipment. The sound engineer used a diffuser to reduce the echo in the room and improve the overall sound quality.
Did you know? The word 'diffuser' is also used in the context of perfumery, where a diffuser is a device that slowly releases a fragrance into the air, allowing the scent to diffuse and spread evenly.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Aug 3, 2026