/ Dictionary / Index A abiogenesis: Meaning and Definition of Find definitions for: a•bi•o•gen•e•sis Pronunciation: (ā"bī-ō-jen'u-sis, ab"ē-ō-), [key] — n. Biol. the now discredited theory that living organisms can arise spontaneously from inanimate matter; spontaneous generation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: abiogenesis (Thesaurus) ab intra* abiogenic Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language