or·tho·drom·ic I. \| ̷ ̷ ̷ ̷|drämik\adjective : of or relating to orthodromy II. adjective : of, relating to, or inducing nerve impulses along an axon in the normal direction — compare antidromic in the Dict • or·tho·drom·i·cal·ly\¦ȯrthə¦drämə̇k(ə)lē \adverb