■ noun ( plural galaxies )
1》 a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
↘( the Galaxy ) the ~ of which the solar system is a part; the Milky Way.
2》 a large and impressive group of people or things.
Origin
ME (orig. referring to the Milky Way): via OFr. from med. L. galaxia , from Gk galaxias (kuklos) 'milky (vault)', from gala , galakt- 'milk'.