Diffuser

Origin

diffuse + -er

Full definition of diffuser

Noun

1. Any person or thing that diffuses.
2. A device designed to diffuse a scent efficiently.
• 2009, February 28, Rita Zekas, DecoRita visits West Elm, They are in the under-$20 section, which includes a display of scented candles and diffusers.
3. (optics) Any device that or spreads out or scatters light, making the light appear softer.
• 2008, January 24, , In a Town Known for Light, a House With Very Little, Along the sofa every three and a half feet, fluorescent tubes glow through translucent plastic diffusers.
4. (automotive) A shaped section of a car's underbody which improves the car's aerodynamic properties.
5. (thermodynamics) A mechanical device that is designed to control the characteristics of a fluid at the entrance to a thermodynamic open system.
6. (sewage treatment) An aerating device consisting of a membrane with fine pores, through which air is blown to generate small bubbles.
7. (cooking) A cooking item that can be placed above a stove heating element or burner to separate the cooking utensil from the heat source.
8. A hairdryer attachment that diffuses the flow of air.