radio wave


radio wave

noun

: an electromagnetic wave that is used for sending signals through the air without using wires

Full Definition of RADIO WAVE

:  an electromagnetic wave with radio frequency

First Known Use of RADIO WAVE

1916

Rhymes with RADIO WAVE

ra·dio wave

noun \ˈrād-ē-ō-ˌwāv\   (Medical Dictionary)

Medical Definition of RADIO WAVE

: an electromagnetic wave having a frequency in the range that extends from about 3000 hertz to about 300 billion hertz and includes the frequencies used for radio and television

radio wave

noun    (Concise Encyclopedia)

Radio waves lie at the low-frequency end of the electromagnetic spectrum. They are primarily used …—© Merriam-Webster Inc.

Wave from the portion of the electromagnetic spectrum at lower frequencies than microwaves. The wavelengths of radio waves range from thousands of metres to around 30 cm. These correspond to frequencies as low as 3 Hz and as high as 1 gigahertz (109 Hz). Radio-wave communications signals travel through the air in a straight line, reflect off of clouds or layers of the ionosphere, or are relayed by satellites in space. They are used in standard broadcast radio and television, short-wave radio, navigation and air-traffic control, cellular telephony, and even remote-controlled toys.

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