Pronunciation: (gal'uk-sē), [key]
a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space.
b. (usually cap.) See Milky Way.
2. any large and brilliant or impressive assemblage of persons or things: a galaxy of opera stars.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.