Pronunciation: ko'mez, kom'i-tez
A blood vessel accompanying another vessel or a nerve; the veins accompanying an artery, often two in number, are called venae comitantes or venae comites.
[L. a companion, fr. com-, together, + eo, pp. itus, to go]
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.