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isthmus
8 dictionary results for: isthmus
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
isth·mus       [is-muhs] Pronunciation Key
–noun, plural -mus·es, -mi       [-mahy] Pronunciation Key.
1.a narrow strip of land, bordered on both sides by water, connecting two larger bodies of land.
2.Anatomy, Zoology. a connecting, usually narrow, part, organ, or passage, esp. when joining structures or cavities larger than itself.
3.Ichthyology. the narrow fleshy area between the sides of the lower jaw of a fish.

[Origin: 1545–55; < L < Gk isthmós neck (of land)]

isthmoid, adjective
American Heritage Dictionary - Cite This Source - Share This
isth·mus       (ĭs'məs)  Pronunciation Key 
n.   pl. isth·mus·es or isth·mi (-mī')
  1. A narrow strip of land connecting two larger masses of land.
  2. Anatomy
    1. A narrow strip of tissue joining two larger organs or parts of an organ.
    2. A narrow passage connecting two larger cavities.


[Latin, from Greek isthmos.]

Online Etymology Dictionary - Cite This Source - Share This
isthmus 
1555, from Gk. isthmos "narrow neck of land," especially that of Corinth, of unknown origin, perhaps from eimi "to go" + suffix -thmo (cf. ithma "a step, movement").

WordNet - Cite This Source - Share This
isthmus

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

The American Heritage Science Dictionary - Cite This Source - Share This
isthmus       (ĭs'məs)  Pronunciation Key 
Plural isthmuses or isthmi (ĭs'mī')
A narrow strip of land connecting two larger masses of land.

American Heritage New Dictionary of Cultural Literacy, Third Edition - Cite This Source - Share This
isthmus [(is-muhs)]

A narrow strip of land that connects two larger bodies of land and has water on both sides.


American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

isthmus isth·mus (ĭs'məs)
n. pl. isth·mus·es or isth·mi (-mī')
A constriction or narrow passage connecting two larger parts of an organ or other anatomical structure.

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Isthmus

Isth"mus\ (?; 277), n.; pl. Isthmuses. [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[eth] isthmus. See Issue.] (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.

Isthmus of the fauces. (Anat.) See Fauces.

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