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

Recent Examples of quasar from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'quasar'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of quasar

quasi-stellar


First Known Use: 1964


QUASAR Defined for English Language Learners

quasar

play
noun

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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