long wave

American  

noun

1. Electricity.  an electromagnetic wave over 60 meters in length.

2. Geology.  L wave.

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long wave British  

noun

1. 1. a radio wave with a wavelength greater than 1000 metres

   2. ( as modifier )

      a long-wave broadcast

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Other Word Forms

• long-wave adjective

Etymology

Origin of long wave

First recorded in 1830–40

Example Sentences

The BBC still broadcasts Radio 4 on long wave as well as on digital radio, FM, and online.

From BBC

Indigenous women and police clashed in Lima, Peru on Saturday in the latest in a long wave of protests calling for the resignation of President Dina Boluarte.

From BBC

Following a long wave of expropriations under late Venezuelan President Hugo Chavez and the default of bonds issued by PDVSA, the creditors flocked to U.S. courts to enforce arbitration awards against the country.

From Reuters

But it takes a detector light-years across to pick up these long waves.

From Science Magazine

The long wave of unrest has posed one of the strongest challenges to the Islamic Republic since the 1979 revolution.

From Reuters