Definition from Wiktionary, the free dictionary
blazar (plural blazars)
- (astronomy) 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.
- (astronomy) Collectively, optically violent variable quasars and BL Lac objects.
astronomy: a highly variable active galaxy
astronomy: collectively, optically violent variable quasars and BL Lac objects
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