isthmus

The definition of an isthmus is a narrow strip of land that connects two larger bodies of land and is surrounded by water on two sides.

(noun)

An example of an isthmus is a land bridge.

See isthmus in Webster's New World College Dictionary

a narrow strip of land having water at each side and connecting two larger bodies of land
Anat.
1. a narrow strip of tissue connecting two larger parts of an organ: the isthmus of the thyroid
2. a narrow passage between two larger cavities: the isthmus of the fallopian tubes

Origin: L < Gr isthmos, a neck, narrow passage, isthmus

See isthmus in American Heritage Dictionary 4

noun pl. isth·mus·es or isth·mi (-mīˌ)

A narrow strip of land connecting two larger masses of land.
Anatomy
a. A narrow strip of tissue joining two larger organs or parts of an organ.
b. A narrow passage connecting two larger cavities.

Origin:

Origin: Latin

Origin: , from Greek isthmos

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