/ Dictionary / Index C cromolyn sodium: Meaning and Definition of Find definitions for: cro'mo•lyn so'dium Pronunciation: (krō'mu-lin), [key] — Pharm. Pharm. a substance, CHNaO, used as a preventive inhalant for bronchial asthma and hay fever. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cromlech cromorne Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language