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- diffusion line,
- diffusion respiration,
- diflorasone diacetate,
a person or thing that diffuses.
(in various machines or mechanical systems, as centrifugal pumps or compressors) a device for utilizing part of the kinetic energy of a fluid passing through a machine by gradually increasing the cross-sectional area of the channel or chamber through which it flows so as to decrease its speed and increase its pressure.
(in a lighting fixture) any of a variety of translucent materials for filtering glare from the light source.
a pierced plate or similar device for distributing compressed air for aeration of sewage.
Origin of diffuser
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a person or thing that diffuses
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
a cone, wedge, or baffle placed in front of the diaphragm of a loudspeaker to diffuse the sound waves
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
photog 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
a perforated plate or similar device for distributing compressed air in the aeration of sewage
a device, attached to a hairdryer, which diffuses the warm air as it comes out
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012