diffuser

noun dif·fus·er \ di-ˈfyü-zər \
Updated on: 17 Nov 2017

Definition of diffuser

1 :one that diffuses: such as
a :a device (such as a reflector) for distributing the light of a lamp evenly
b :a screen (as of cloth or frosted glass) for softening lighting (as in photography)
c :a device (such as slats at different angles) for deflecting air from an outlet in various directions
2 :a device for reducing the velocity and increasing the static pressure of a fluid passing through a system

Recent Examples of diffuser from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diffuser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diffuser

1645


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