or·tho·drom·ic adj \ˌȯr-thə-ˈdräm-ik\
: proceeding or conducting in a normal direction—used especially of a nerve impulse or fiber <orthodromic neural stimulation>
: characterized by orthodromic conduction <in orthodromic tachycardia, the atrial impulse conducts in an antegrade direction from the atria through the AV node—Norris Lai & Melvyn Rubenfire>
—or·tho·drom·i·cal·ly \-i-k(ə-)lē\ adverb
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