an·ti·drom·ic \|antə̇|drämik\adjective oran·tid·ro·mal\(ˈ)an|tidrəməl\ Etymology:anti- (I) + drom- + -ic or -al : proceeding or conducting on a course opposite in direction to the usual — used especially of a nerve impulse or fiber • an·ti·drom·i·cal·ly\|antə̇|drämə̇k(ə)lē\adverb