long wave

/ˌlɔŋ ˈweɪv/
IPA guide

Other forms: long waves

Definitions of long wave
  1. noun
    a radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz)
    see moresee less
    type of:
    radio emission, radio radiation, radio wave
    an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
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