diffuser

1. Any person or thing that diffuses.
2. A device designed to diffuse a scent efficiently.
3. Any device that or spreads out or scatters light, making the light appear softer.
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.

Plural diffusers