diffuser

dif·fus·er

 (dĭ-fyo͞o′zər)

n.

1. One that diffuses, as:

a. A light fixture, such as a frosted globe, that spreads light evenly.

b. A medium that scatters light, used in photography to soften shadows.

c. A device, such as a cone or baffle, placed in front of a loudspeaker diaphragm to diffuse the sound waves.

2. A flow passage in a wind tunnel that decelerates a stream of gas or liquid from a high to a low velocity.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

diffuser

(dɪˈfjuːzə) or

diffusor

n

1. a person or thing that diffuses

2. (Furniture) 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. (Electronics) a cone, wedge, or baffle placed in front of the diaphragm of a loudspeaker to diffuse the sound waves

4. (Aeronautics) 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) 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

6. (Civil Engineering) a perforated plate or similar device for distributing compressed air in the aeration of sewage

7. (Hairdressing & Grooming) a device, attached to a hairdryer, which diffuses the warm air as it comes out

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

dif•fus•er

(dɪˈfyu zər)

n.

1. a person or thing that diffuses.

2. (in a lighting fixture) any of a variety of translucent materials for filtering glare from the light source.

[1670–80]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

Noun	1.	diffuser - baffle that distributes sound waves evenly diffusor baffle, baffle board - a flat plate that controls or directs the flow of fluid or energy
	2.	diffuser - optical device that distributes the light of a lamp evenly diffusor lamp - a piece of furniture holding one or more electric light bulbs lighting fixture - a fixture providing artificial light optical device - a device for producing or controlling light

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

Translations

diffuseur

diffusore

diffuser

n (for light) → (Licht)diffusor m

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007