/ Dictionary / Index D digoxin: Meaning and Definition of Find definitions for: dig•ox•in Pronunciation: (dij-ok'sin), [key] — n. Pharm. a cardiac glycoside of purified digitalis, CHO, derived from the plant leaves of Digitalis lanata and widely used in the treatment of congestive heart failure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: digoxin (Thesaurus) dignity digram Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language