Definition, Meaning & Synonyms

quasar

noun
ˈkwā-ˌzär
Definition
A quasar is a highly luminous and distant celestial object, powered by a supermassive black hole at the center of a galaxy.
Examples
  • The discovery of quasars changed our understanding of the universe.
  • Quasars are often used as markers for measuring vast distances in space.
  • Scientists study quasars to learn about the formation of galaxies.
Meaning
Quasars are among the most energetic and distant members of a class of objects known as active galactic nuclei.
Synonyms
  • active galactic nucleus
  • blazar
  • radio galaxy