Definition of quasar
: a region at the center of a galaxy that produces an extremely large amount of radiation
Recent Examples of quasar from the Web
Among the brightest objects in the sky, quasars are short-lived phenomena that only existed during the earliest eras of the universe.
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Origin and Etymology of quasar
First Known Use: 1964
QUASAR Defined for English Language Learners
Definition of quasar for English Language Learners
astronomy : a very bright object in space that is similar to a star and that is very far away from the Earth and gives off powerful radio waves
Seen and Heard
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