/ Dictionary / Index C chemosmosis: Meaning and Definition of Find definitions for: che•mos•mo•sis Pronunciation: (kē"moz-mō'sis, -mos-, kem"oz-, -os-), [key] — n. chemical action between substances that occurs through an intervening, semipermeable membrane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Chemosh chemosphere Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language