isth·​mic ˈi-smik How to pronounce isthmic (audio)
: of or relating to an anatomical isthmus

Word History

First Known Use

1888, in the meaning defined above

Time Traveler
The first known use of isthmic was in 1888

Dictionary Entries Near isthmic

Cite this Entry

“Isthmic.” Dictionary, Merriam-Webster, Accessed 20 Apr. 2024.

Medical Definition


isth·​mic ˈis-mik How to pronounce isthmic (audio)
: of, relating to, or taking place in an isthmus
isthmic ectopic pregnancy
isthmic obstruction
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