radio galaxy

noun

Definition of radio galaxy

: a galaxy that is a powerful source of radio waves

Examples of radio galaxy in a Sentence

Recent Examples on the Web MeerKAT is already trying to find similarly gargantuan filaments in other radio galaxies. Robin George Andrews, Scientific American, "Strange Extragalactic Strands Mystify Astronomers," 16 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radio galaxy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of radio galaxy

1959, in the meaning defined above

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The first known use of radio galaxy was in 1959

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Cite this Entry

“Radio galaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radio%20galaxy. Accessed 21 Oct. 2020.

More from Merriam-Webster on radio galaxy

Britannica.com: Encyclopedia article about radio galaxy

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