/ Dictionary / Index P prebirth: Meaning and Definition of Find definitions for: pre•birth Pronunciation: (prē-bûrth'), [key] — n. the period, usually six months, preceding a child's birth. —adj. pertaining to or occurring during such a period. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prebiological Preble Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language