/ Dictionary / Index C cathodic: Meaning and Definition of Find definitions for: ca•thod•ic Pronunciation: (ka-thod'ik, -thō'dik, ku-), [key] — adj. pertaining to a cathode or phenomena in its vicinity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cathodic (Thesaurus) cathode-ray tube cathodic protection Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language