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megaparsec

noun mega·par·sec \ ˌme-gə-ˈpär-ˌsek \

Definition of megaparsec

: a unit of measure for distances in intergalactic space equal to one million parsecs

Origin and Etymology of megaparsec

International Scientific Vocabulary

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First Known Use: 1920

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See words that rhyme with megaparsec Britannica.com: Encyclopedia article about megaparsec

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