Dictionary

isthmus

noun isth·mus \ˈis-məs\

: a narrow area of land that connects two larger land areas

Full Definition of ISTHMUS

1
:  a narrow strip of land connecting two larger land areas
2
:  a narrow anatomical part or passage connecting two larger structures or cavities

Origin of ISTHMUS

Latin, from Greek isthmos
First Known Use: 1555

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale

Rhymes with ISTHMUS

ISTHMUS Defined for Kids

isthmus

noun isth·mus \ˈi-sməs\

Definition of ISTHMUS for Kids

:  a narrow strip of land separating two bodies of water and connecting two larger areas of land
Medical Dictionary

isthmus

noun isth·mus \ˈis-məs\

Medical Definition of ISTHMUS

:  a contracted anatomical part or passage connecting two larger structures or cavities: as a :  an embryonic constriction separating the midbrain from the hindbrain b :  the lower portion of the uterine corpus

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June 30, 2015
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