radio star

noun

: a radio source of very small dimensions and relatively strong radiation and sometimes identified with certain small nebulosities and galaxies

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Astron. Now Rare.

a radio source.

[1945-50]

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radio star noun

A discrete source of radio waves in outer space, generally corresponding with no visual object and known only by radio astronomy

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Main Entry: ↑radio

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radio star,

a powerful mass of energy in space that emits radio waves instead of light waves. Radio stars are studied by radio astronomers: »

There seem to be a great number of these radio stars: more than 200 are now known, and it is likely that vastly greater numbers will be found as radio telescopes are improved (A. C. B. Lovell).