ETYM Latin isthmus, Greek isthmos a neck, a neck of land between two seas, an isthmus, especially the Isthmus of Corinth; prob. from the root of ienai to go; cf. Icel. eith isthmus. Related to Issue.
Narrow strip of land joining two larger land masses. The Isthmus of Panama joins North and South America.
(Irregular plural: isthmuses).
A relatively narrow strip of land (with water on both sides) connecting two larger land areas.
Klanac, klisura, moreuz.