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qua·si-stel·lar object(kwā′zī-stĕl′ər, kwä′zē-)
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Celestial Objects) 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. Abbreviation: QSO
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014