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English definition of “diffuser”

diffuser

noun [C] (also diffusor)     /dɪˈfjuː.zər/ US  /-zɚ/
a device that is used to make light less direct to spread heat across an area or surface Lighting and light fittings in the home
(Definition of diffuser noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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