isthmus Meaning, Definition & Usage

  1. noun a relatively narrow strip of land (with water on both sides) connecting two larger land areas
  2. noun a cord-like tissue connecting two larger parts of an anatomical structure
    band.

WordNet

Isth"mus noun
Etymology
L. isthmus, Gr. 'isqmo`s a neck, a neck of land between two seas, an isthmus, especially the Isthmus of Corinth; prob. from the root of 'ie`nai to go; cf. Icel. ei&edh; isthmus. See Issue.
Wordforms
plural Isthmuses
Definitions
  1. (Geog.) A neck or narrow slip of land by which two continents are connected, or by which a peninsula is united to the mainland; as, the Isthmus of Panama; the Isthmus of Suez, etc.

Webster 1913