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English definition of “MP3”

MP3

noun [C or U]     /ˌem.piːˈθriː/ trademark
a computer file which stores high-quality sound in a small amount of space , or the technology that makes this possible : I downloaded their latest album on MP3.Computer hardware
(Definition of MP3 noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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