pulsar

noun

Definition of pulsarnext
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 pulsar In 2015, X-ray observations noted that the pulsar had experienced a 'spin glitch', which is a small increase in rotation of a neutron star probably caused by some kind of disruption or shifting of material within the neutron star's dense interior. — Keith Cooper, Space.com, 6 July 2026 In 2023 a collaboration of radio astronomers reported tiny deviations in the timing of these flashes from dozens of pulsars in the Milky Way. — Joseph Howlett, Scientific American, 18 June 2026 The source is a pulsar wind nebula (PWN) powered by the pulsar PSR J1849-0001, located in the constellation Aquila. — Rupendra Brahambhatt, Interesting Engineering, 26 Apr. 2026 See All Example Sentences for pulsar
Recent Examples of Synonyms for pulsar
  1. supernova
  2. quasar
  3. nova
  4. supergiant
  5. variable
  6. neutron star
  7. white dwarf
Noun
  • The imagery shows the supernova remnant Cassiopeia A, the dusty nebula NGC 3603, the spiral galaxy Messier 94 and the galaxy cluster ZwCl 0024+1652.
    — Stephanie Pappas, Scientific American, 4 July 2026
  • The visit then took us into the future with the star going supernova, putting on a show that no one on Earth has seen for centuries.
    — Rob Pegoraro, ArsTechnica, 3 July 2026
Definition of supernova
Noun
  • The most impressive of these new discoveries is the most ancient and distant quasar ever seen, shining with the light of a trillion suns just 670 million years after the Big Bang.
    — Robert Lea, Space.com, 9 July 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
Definition of quasar
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
  • May's full Blue Moon put on a dazzling display over the weekend, flooding the night sky with moonlight as the red supergiant star Antares glowed nearby.
    — Anthony Wood, Space.com, 1 June 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
  • For corporate and investor decision-makers the variable that now dominates AI infrastructure economics is not model performance or chip cost curves.
    — Güney Yıldız, Forbes.com, 30 June 2026
  • But consumer demand is the big variable impacting companies’ gross margin, Sole noted.
    — Vicki M. Young, Footwear News, 29 June 2026
Definition of variable
Noun
  • When this phenomenon happens, all the matter in the neutron star fuses into one big atom, with a density of about a million billion g/cc.
    — Stephen DiKerby, The Conversation, 29 June 2026
  • Hopefully, this will help determine whether they’re sparked by an eruption from a single neutron star, or when two of these tiny but massive bodies collide.
    — Joseph Howlett, Scientific American, 18 June 2026
Definition of neutron star
Noun
  • What immediately stood out about WD 1856 b was how close its orbit is to its white dwarf host.
    — Robert Lea, Space.com, 2 July 2026
  • The planet either warmed up while engulfed during the red giant phase, or began heating as gravity pulled it closer to the resultant white dwarf.
    — Andrew Paul, Popular Science, 1 July 2026
Definition of white dwarf

Browse Nearby Words

pulpy
pulsar
pulsars
See all Nearby Words

Cite this Entry

“Pulsar.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/pulsar. Accessed 13 Jul. 2026.

Copy Citation

More from Merriam-Webster on pulsar

Britannica.com: Encyclopedia article about pulsar

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!

Popular in Grammar & Usage

See More

Is that lie 'bald-faced' or 'bold-faced'?

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

Why is '-ed' sometimes pronounced at the end of a word?

Commonly Misspelled Words

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)
See More

Popular in Wordplay

See More

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List

One-Word Oxymorons: Bittersweet, Spendthrift, and More

Ten Words Ending with a Silent ‘T’

The Words of the Week - Jul 10
See More

Popular

See More

Is that lie 'bald-faced' or 'bold-faced'?

14 Phobias You Probably Haven't Heard Of

The Longest Long Words List
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
banana-mirrored
Contradictory Words Quiz Pick out which word means one thing…and the opp...
See All