isthmus

English
WOTD – 5 November 2010
An isthmus (narrow strip of land).

Etymology

Via Latin isthmus, from Ancient Greek ἰσθμός (isthmós, “neck”), possibly from εἶμι (eîmi, “to go”). Cognate to Old Norse eið (“isthmus”).

Pronunciation
  • IPA(key): /ˈɪs.məs/
  • Audio (US)(file)
  • Rhymes: -ɪsməs

Noun

isthmus (plural isthmuses or isthmi)

  1. A narrow strip of land, bordered on both sides by water, and connecting two larger landmasses.
  2. (anatomy) Any such narrow part connecting two larger structures.
  3. (graph theory) An edge in a graph whose deletion increases the number of connected components of the graph.

Derived terms

Translations

Further reading

Latin

Pronunciation
  • (Classical) IPA(key): /ˈistʰ.mus/, [ˈɪstʰ.mʊs]

Noun

isthmus m (genitive isthmī); second declension

  1. isthmus

Usage notes
  • Capitalised, it refers to the Isthmus of Corinth.

Inflection

Second declension.

Case Singular Plural
Nominative isthmus isthmī
Genitive isthmī isthmōrum
Dative isthmō isthmīs
Accusative isthmum isthmōs
Ablative isthmō isthmīs
Vocative isthme isthmī
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