/ Dictionary / Index A arterio-: Meaning and Definition of Find definitions for: arterio- Pronunciation: [key] a combining form meaning “artery,” used in the formation of compound words: arteriosclerosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. arterialize arteriogram Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language