a part of a lighting fixture consisting of a translucent or frosted covering or of a rough reflector: used to scatter the light and prevent glare
3.
a cone, wedge, or baffle placed in front of the diaphragm of a loudspeaker to diffuse the sound waves
4.
a duct, esp in a wind tunnel or jet engine, that widens gradually in the direction of flow to reduce the speed and increase the pressure of the air or fluid
5. photography
a light-scattering medium, such as a screen of fine fabric, placed in the path of a source of light to reduce the sharpness of shadows and thus soften the lighting
6.
a perforated plate or similar device for distributing compressed air in the aeration of sewage
7.
a device, attached to a hairdryer, which diffuses the warm air as it comes out
diffuser in American English
(dɪˈfjuzər) or difˈfusor (dɪˈfjuzər)
noun
a person or thing that diffuses, as a device for distributing light evenly
Examples of 'diffuser' in a sentence
diffuser
The second factor is the distance between the light and the diffuser.
Freeman, Michael Collins Complete Guide to Photography (1993)
The hair was dried using a diffuser with the head tipped forward.
Times, Sunday Times (2007)
Dry using the diffuser nozzle on your hair dryer.
Times, Sunday Times (2014)
A diffuser channels air out of the back of the car.
The Sun (2009)
If you want to use a hairdryer, use a diffuser attachment so as not to blast the curls out of shape.
Times, Sunday Times (2015)
Last season it was a flexible front wing that had the paddock up in arms; this season it is the blown diffuser.
Times, Sunday Times (2011)
With a photographic light, an umbrella is the easiest diffuser to use, but soft daylight from a window also works well.