/ Dictionary / Index C chemosynthesis: Meaning and Definition of Find definitions for: che•mo•syn•the•sis Pronunciation: (kē"mō-sin'thu-sis, kem"ō-), [key] — n. Biol., Biochem. the synthesis of organic compounds within an organism, with chemical reactions providing the energy source. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chemosynthesis (Thesaurus) chemosurgery chemosynthetic bacteria Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language