/ Dictionary / Index G galactoid: Meaning and Definition of Find definitions for: ga•lac•toid Pronunciation: (gu-lak'toid), [key] — adj. resembling milk; milky. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. galacto- galactometer Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language