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View synonyms for radio beam

radio beam

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
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of radio beam1

First recorded in 1920–25
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Example Sentences

Dr Taylor described the radio beams from pulsars as being like light beams from a lighthouse.

From BBC

To detect the spiraling pairs, observers train large radio telescopes on dozens of pulsars—collapsed stars emitting radio beams that, as the pulsar spins, appear as pulses with clocklike regularity.

The stars, collapsed stellar remnants made of tightly packed neutrons, are called pulsars because as they spin, they emit radio beams that sweep past Earth like a lighthouse.

Those fields power pulsars, which sweep a radio beam past Earth at regular intervals as they spin.

Connery answers diffidently: “A little. It’s throwing the gyroscopic controls of a guided missile off balance with a … a radio beam or something, isn’t it?”

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radio beaconradiobiology