/ Dictionary / Index S space biology: Meaning and Definition of Find definitions for: space' biol"ogy Pronunciation: [key] exobiology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. space bar spaceborne Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language