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quasi-stellar object

[kwey-zahy-stel-er, kwey-sahy-, kwah-see-, -zee-]
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noun
  1. quasar. Abbreviation: QSO
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Origin of quasi-stellar object

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for quasi-stellar object

quasi-stellar object

noun
  1. 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 shiftsAbbreviation: QSO
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012