binary star

noun

: a system of two stars that revolve around each other under their mutual gravitation

Examples of binary star in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
An eye-opening new Hubble image shows the binary star system R Aquarii having a cosmic freakout. Amanda Kooser, Forbes, 17 Oct. 2024 There are many theories of gravity out there, and many interpretations of wide binary star data. Big Think, 24 June 2024 And the members of binary star systems tend to form near each other from a single cloud of material. John Timmer, Ars Technica, 16 Apr. 2024 The traditional picture of how hypervelocity stars are made begins with a binary star system. Alison Klesman, Discover Magazine, 14 Mar. 2019 See all Example Sentences for binary star 

Word History

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of binary star was in 1826

Dictionary Entries Near binary star

Cite this Entry

“Binary star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/binary%20star. Accessed 9 Nov. 2024.

Kids Definition

binary star

noun
: a system of two stars that revolve around each other under the gravitation of both

More from Merriam-Webster on binary star

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!