1,400 new words in our dictionary! — Parasocial, glow-up, promposal & more
1,400 new words in our dictionary! — More

quasar

noun

Definition of quasarnext
as in supernova

Related Words

Relevance

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of quasar The supermassive black hole in question is powering a type of quasar called a blazar. — Robert Lea, Space.com, 19 Aug. 2026 The team spotted the distant quasar, an actively feeding supermassive black hole, using observations from the Subaru Telescope. — Georgina Jedikovska, Interesting Engineering, 23 Jan. 2026 See All Example Sentences for quasar
Recent Examples of Synonyms for quasar
  1. supernova
  2. pulsar
  3. nova
  4. variable
  5. supergiant
  6. neutron star
  7. supercluster
Noun
  • The final collapse results in a supernova explosion and creates a neutron star with a mass between one and two times that of the sun.
    — Robert Lea, Space.com, 16 Sep. 2026
  • If Chicago had not gone full supernova on Sunday, Baltimore’s offense would be the biggest fantasy story.
    — Andy Behrens, New York Times, 14 Sep. 2026
Definition of supernova
Noun
  • That means the measurements provided by pulsar timing arrays could help determine how abundant heavy black hole seeds were in the early universe.
    — Robert Lea, Space.com, 21 Aug. 2026
  • The pulsar ties back to early research on the phenomenon, which had scientists wondering if their signals were signs of alien life.
    — Jared Weiss, New York Times, 31 July 2026
Definition of pulsar
Noun
  • Even though novas are exceptionally bright, supernovas are brighter—reaching billions of times brighter than the sun at their peak.
    — Elizabeth Gamillo, Smithsonian Magazine, 3 July 2025
Definition of nova
Noun
  • When an upper bound on a variable equals a lower bound on the same variable, no doubt remains about its true value.
    — Jack Murtagh, Scientific American, 17 Sep. 2026
  • That development is the variable that will push and pull the USMNT pool in different directions.
    — Henry Bushnell, New York Times, 15 Sep. 2026
Definition of variable
Noun
  • The observations show the red supergiant has an atmosphere with a temperature of around 3,680 degrees Fahrenheit (2,030 degrees Celsius), but possesses at least two regions even hotter than this.
    — Robert Lea, Space.com, 25 Aug. 2026
  • Located 7,200 light-years away, Cygnus X-1 features not only a black hole — the first one ever identified more than a half-century ago — but a blue supergiant star, its constant companion.
    — Marcia Dunn, Los Angeles Times, 20 Apr. 2026
Definition of supergiant
Noun
  • Scientists have long suspected there is indeed a pathway for a white dwarf to become a neutron star.
    — Robert Lea, Space.com, 16 Sep. 2026
  • Hubble’s images reveal an intricate web of gas and dust spreading outward from the explosion’s center, where a rapidly spinning neutron star remains.
    — Kaif Shaikh, Interesting Engineering, 15 Aug. 2026
Definition of neutron star
Noun
  • An enormous supercluster made up from over 20 individual galaxy clusters hiding behind our dusty Milky Way is even larger than astronomers had thought, affecting the motion through space of all the galaxies and galaxy clusters in our corner of the cosmos.
    — Keith Cooper, Space.com, 4 May 2026
  • Venice features a radical redesign with up to 512 threads per package, specifically optimized for the orchestration layers of AI superclusters.
    — Trefis Team, Forbes.com, 22 Apr. 2026
Definition of supercluster

Browse Nearby Words

quartos
quasar
quasars
See all Nearby Words

Cite this Entry

“Quasar.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/quasar. Accessed 22 Sep. 2026.

Copy Citation

More from Merriam-Webster on quasar

Britannica.com: Encyclopedia article about 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!

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of nemesis

See Definitions and Examples »

Popular in Grammar & Usage

See More

Why do we use apostrophes to show possession?

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

'A' or 'an'? What about before 'h'? An Indefinite Article Guide
See More

Popular in Wordplay

See More

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary

Words from the 'Odyssey'

14 Phobias You Probably Haven't Heard Of

The Words of the Week - Sept. 18
See More

Popular

See More

Why do we use apostrophes to show possession?

9 Words That Sound Like Insults But Aren't

Back to School Vocabulary
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
crayons-in-a-circle
Guess the Color Quiz Questions that use the whole box of crayons.
See All