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extension noun ( COMPUTER )

Click to hear the UK pronunciation of this wordClick to hear the US pronunciation of this word/ɪkˈsten.t ʃən/ n

Definition

[C] the last part of the name of a computer file, which comes after a (.), and shows what type of file it is

(Definition of extension noun (COMPUTER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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