Wiktionary
dwarf spheroidal
n. (context galaxy English) A dwarf spheroidal galaxy
Usage examples of "dwarf spheroidal".
In one direction, the Milky Way Galaxy was frozen in majestic splendor, set off like a whirlpool of jewels by her satellites, the Greater and Lesser Magellanic Clouds, and blemished only by the irregularity of Sagittarius, a dwarf spheroidal galaxy in collision with the Milky Way, directly opposite the galactic core from Earth, and thus unseen through most of human history.