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set-top box

noun [C]
 
 
/ˌset.tɒpˈbɒks/ US  /-tɑːpˈbɑːks/

Definition

an electronic device that makes it possible to watch digital broadcasts on ordinary televisionsTelevision
(Definition of set-top box noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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