from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A highly variable active galaxy, characterized by a very compact and highly variable energy source (a supermassive black hole) at the center and its strong optical polarization and variability.
  • n. Collectively, optically violent variable quasars and BL Lac objects.


Sorry, no etymologies found.



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  • When a black hole generates a brilliant jet of radiation, and that jet is aimed directly at Earth, scientists call the galaxy a “blazar.” -- July 12, 2018 Washington Post

    July 12, 2018

  • Some planets are lit by a quasar

    And tonier 'hoods by a blazar,

    But I, being done right

    By moderate sunlight,

    Am fond of our shabby old daystar.

    February 20, 2016