quasi stellar object

quasi-stellar object

[kwey-zahy-stel-er, kwey-sahy-, kwah-see-, -zee-]
noun
quasar. Abbreviation: QSO

Origin:
1960–65

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World English Dictionary
quasi-stellar object
 
n
QSO a member of any of several classes of astronomical bodies, including quasars (strong radio sources) and quasi-stellar galaxies (no traceable radio emission), both of which have exceptionally large red shifts

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