quasi-stellar object

[kwey-zahy-stel-er, kwey-sahy-, kwah-see-, -zee-]

noun

1. quasar. QSO

quasi-stellar object

noun

1. 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

Word History and Origins

Origin of quasi-stellar object¹

First recorded in 1960–65

Example Sentences

Scientists designated the objects "quasars," as a portmanteau of a "quasi-stellar" object.

Read more on Science Daily

These objects are called quasars — short for quasi-stellar object — and sometimes they shine so bright that they can obscure nearby galaxies.

Read more on Salon