quasar

noun

qua·​sar ˈkwā-ˌzär How to pronounce quasar (audio)
 also  -ˌsär
: a region at the center of a galaxy that produces an extremely large amount of radiation

Examples of quasar in a Sentence

Recent Examples on the Web Srishti Gupta 7 days ago 0 Space Merging quasars from 900 million years after Big Bang discovered The Cosmic Dawn period saw the birth of the first stars and galaxies, filling the previously dark universe with light. Interesting Engineering, 24 June 2024 Or at least a lot like quasars from more recent periods in the Universe's history. John Timmer, Ars Technica, 17 June 2024 Once activated, they are called active galactic nuclei, AGN, or quasars. Giuseppina Fabbiano, Discover Magazine, 31 May 2024 Having the tools to shore up your scripts — a better understanding of the nature of quasars, or the wave-particle duality of matter and light — is surely no bad thing. Remy Blumenfeld, The Hollywood Reporter, 18 May 2024 See all Example Sentences for quasar 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'quasar.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

quasi-stellar

First Known Use

1964, in the meaning defined above

Time Traveler
The first known use of quasar was in 1964

Dictionary Entries Near quasar

Cite this Entry

“Quasar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quasar. Accessed 4 Jul. 2024.

Kids Definition

quasar

noun
qua·​sar ˈkwā-ˌzär How to pronounce quasar (audio)
 also  -ˌsär
: any of the very distant starlike heavenly objects that give off very strong blue and ultraviolet light and powerful radio waves

More from Merriam-Webster on quasar

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!