Isthmus

For other uses, see Isthmus (disambiguation).

An isthmus (/ˈɪs(θ)məs/ ISS-məs, ISTH-məs; pl.: isthmuses or isthmi /-maɪ/ -⁠my; from Ancient Greek ἰσθμός isthmós 'neck') is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the sea counterpart of an isthmus, a narrow stretch of sea between two landmasses that connects two larger bodies of water.

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