radio wave

noun

Electricity.

1. an electromagnetic wave having a wavelength between 1 millimeter and 30,000 meters, or a frequency between 10 kilohertz and 300,000 megahertz.

radio wave

noun

1. an electromagnetic wave of radio frequency

radio wave

1. A very low frequency electromagnetic wave (from roughly 30 kilohertz to 100 gigahertz). Radio waves are used for the transmission of radio and television signals; the microwaves used in radar and microwave ovens are also radio waves. Many celestial objects, such as pulsars, emit radio waves.

2. See more at electromagnetic spectrum

Word History and Origins

Origin of radio wave¹

First recorded in 1915–20

Example Sentences

The team then monitored these ticks using two different techniques; one measured extremely small electric currents, while the other used radio waves to detect subtle changes in the system.

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LIDAR, unlike passive sensors, sends out its own light signals, working similarly to radar but with lasers instead of radio waves.

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For the first time, researchers at Tel Aviv University have predicted what might be discovered by detecting radio waves that originated in the early Universe.

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This unusual discovery revealed powerful and rapidly changing radio waves, showing that supermassive black holes can exist and stay active far beyond galactic centers.

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Unlike visible light, radio waves from hot gasses are not blocked that easily by cosmic dust.

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Related Words

• microwave