Definition of short wave noun from the Oxford Advanced Learner's Dictionary


short wave

BrE BrE//ˌʃɔːt ˈweɪv//
; NAmE NAmE//ˌʃɔːrt ˈweɪv//
[countable, uncountable] (abbreviation SW) Radio technology
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a radio wave that has a frequency between 3 and 30 megahertz compare long wave, medium wave See related entries: Radio technology