quasar

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noun qua·sar \ˈkwā-ˌzär also -ˌsär\

Definition of quasar

  1. :  a region at the center of a galaxy that produces an extremely large amount of radiation

Origin and Etymology of quasar

quasi-stellar


First Known Use: 1964


QUASAR Defined for English Language Learners

quasar

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noun qua·sar \ˈkwā-ˌzär also -ˌsär\

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


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