/ Dictionary / Index C cauterant: Meaning and Definition of Find definitions for: cau•ter•ant Pronunciation: (kô'tur-unt), [key] — Med. Med. —n. a caustic agent. —adj. caustic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cauterant (Thesaurus) caustic surface cauterize Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language