quasi-stellar object

[kwey-zahy-stel-er, kwey-sahy-, kwah-see-, -zee-] /ˈkweɪ zaɪˈstɛl ər, ˈkweɪ saɪ-, ˈkwɑ si-, -zi-/
noun
1.
quasar.
Abbreviation: QSO.
Origin
1960-65
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 shifts QSO