diffuser

diffuser
/di fyooh"zeuhr/, n.
1. a person or thing that diffuses.
2. (in various machines or mechanical systems, as centrifugal pumps or compressors) a device for utilizing part of the kinetic energy of a fluid passing through a machine by gradually increasing the cross-sectional area of the channel or chamber through which it flows so as to decrease its speed and increase its pressure.
3. (in a lighting fixture) any of a variety of translucent materials for filtering glare from the light source.
4. a pierced plate or similar device for distributing compressed air for aeration of sewage.
Also, diffusor.
[1670-80; DIFFUSE + -ER1]

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Universalium. 2010.

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  • Diffuser — Dif*fus er, n. One who, or that which, diffuses. [1913 Webster] …   The Collaborative International Dictionary of English

  • diffuser — or diffusor [di fyo͞o′zər] n. a person or thing that diffuses, as a device for distributing light evenly …   English World dictionary

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