antidromic

adjective

an·​ti·​drom·​ic ˌan-ti-ˈdrä-mik How to pronounce antidromic (audio)
: proceeding or conducting in a direction opposite to the usual one
—used especially of a nerve impulse or fiber
antidromically
ˌan-ti-ˈdrä-mi-k(ə-)lē How to pronounce antidromic (audio)
adverb

Word History

Etymology

anti- + Greek dromos racecourse, running — more at dromedary

First Known Use

1895, in the meaning defined above

Time Traveler
The first known use of antidromic was in 1895

Rhymes for antidromic

See All Rhymes for antidromic

Browse Nearby Words

anti-draft
antidromic
antidrug
See all Nearby Words

Cite this Entry

“Antidromic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antidromic. Accessed 7 Jul. 2026.

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Medical Definition

antidromic

adjective
an·​ti·​dro·​mic ˌant-i-ˈdräm-ik How to pronounce antidromic (audio) -ˈdrōm- How to pronounce antidromic (audio)
1
: proceeding or conducting in a direction opposite to the usual one
—used especially of a nerve impulse or fiber
antidromic action potentials
2
: characterized by antidromic conduction
antidromic tachycardia in which impulses travel from the ventricle to the atrium via the atrioventricular node
antidromically
-i-k(ə-)lē How to pronounce antidromic (audio)
adverb
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