radio beam

noun

1. beam ( def 12 ).

radio beam

noun

1. a narrow beam of radio signals transmitted by a radio or radar beacon, radio telescope, or some other directional aerial, used for communications, navigation, etc Sometimes shortened tobeam

Word History and Origins

Origin of radio beam¹

First recorded in 1920–25

Example Sentences

Each star acts as a giant clock, precisely stabilized by its immense mass, “ticking” with every rotation as its radio beam sweeps past.

From Singularity Hub 

We can have no warning, I suppose; your ship will outrace the radio beam.

From Project Gutenberg

Her directed radio beam flashed the yellow call signal in O'Malley's control room.

From Project Gutenberg

"A way of transmitting real power in a radio beam," said the 'copter man.

From Project Gutenberg

It'll be simple for them to send out a radio beam and touch our invisible ship with it.

From Project Gutenberg

The rockets of the tiny missile were flaming, but that flame was visible only from the rear and no radio beam was upon it.

From Project Gutenberg