Pronunciation: (gu-lak'tik), [key]
a. of or pertaining to a galaxy.
b. of or pertaining to the Milky Way.
2. immense; huge; vast: a problem of galactic proportions.
3. Physiol.pertaining to or stimulating the secretion of milk.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.