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English definition of “high-definition”

high-definition

adjective [before noun] uk   /ˌhaɪ.def.ɪˈnɪʃ.ən/ ( abbreviation HD, high-def) us  
used to describe a system for showing very clear pictures on a television or computer screen or for producing very clear sound: high-definition television
(Definition of high-definition adjective from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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