/ Dictionary / Index A arteriotomy: Meaning and Definition of Find definitions for: ar•te•ri•ot•o•my Pronunciation: (är-tēr"ē-ot'u-mē), [key] — pl. -mies. the incision or opening into the lumen of an artery for the removal of a clot, embolus, or the like, or, formerly, for bloodletting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. arteriosclerosis arteriovenous Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language