diffuser

Noun

IPA/dɪˈfjuːzə(ɹ)/

diffuser (plural diffusers)

1. Any person or thing that diffuses.
2. A device designed to diffuse a scent efficiently.
   • They are in the under-$20 section, which includes a display of scented candles and diffusers.2009 February 28, Rita Zekas, “DecoRita visits West Elm”, in Toronto Star

   Synonyms:

   aroma lamp

3. Any device that or spreads out or scatters light, making the light appear softer.
   • Along the sofa every three and a half feet, fluorescent tubes glow through translucent plastic diffusers.2008 January 24, “In a Town Known for Light, a House With Very Little”, in New York Times
4. A shaped section of a car's underbody which improves the car's aerodynamic properties.
5. A mechanical device that is designed to control the characteristics of a fluid at the entrance to a thermodynamic open system.
6. An aerating device consisting of a membrane with fine pores, through which air is blown to generate small bubbles.
7. 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.