Diffuser

Diffuser can refer to any device that diffuses in some manner such as:

In aerodynamics
- Diffuser (automotive), a shaped section of a car's underbody which improves the car's aerodynamic properties. It causes air to escape from the underside of the vehicle faster than above air, working like a wing on an airplane in the opposite direction. Results in improvement of downforce.
- divergent part of the flute
- divergent part of the aspirator
- Part of a Jet engine air intake, especially when operated at supersonic speeds
- the channel between the vanes of a turbine
- the channel between the vanes of the stator of a centrifugal compressor
Diffuser (breathing set part), a device fitted over an underwater breathing set's blow hole to break up the resulting bubbles
Diffuser (optics), a device that diffuses or spreads out or scatters light in some manner
Diffuser (acoustics), a device that scatters reflections of sound across frequencies.
Diffusion filter, a specific optical diffuser used in photography
Diffuser (sewage), an aerating device for sewage and industrial waste water treatments; a membrane with fine pores, through which fine bubbles are generated by the supply of air through blowers
Diffuser (thermodynamics), a device that controls the characteristics of a fluid at the entrance to a thermodynamic open system
Diffuser (heat), a cooking item that can be placed above a stove heating element or burner to separate the cooking utensil from the heat source

Diffuser can also refer to: