thalweg

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UK/ˈtaːlvɛç/UK/ˈtɑːlvɛɡ/UK/ˈθɑːlwɛɡ/US/ˈtɑl.vɛɡ/

noun

The line that connects the lowest points in a valley or river channel, and thus the line of fastest flow or deepest water along a river’s course.

RareScrabble 14

Meanings

nounthalweg (plural thalwege or thalwegs)

plural thalwege · plural thalwegs · alternative talweg

  1. cartographyThe line that connects the lowest points in a valley or river channel, and thus the line of fastest flow or deepest water along a river’s course.

Origin

  1. GermanThalweg
  2. Englishthalweg

Borrowed from 19th century German Thalweg, from Thal (“valley”) + Weg (“way, course”).

Full word history & related roots →

Translations

Catalan tàlveg
  • tàlvegline that connects the lowest points in a valley or river channel
Czech údolnice
  • údolniceline that connects the lowest points in a valley or river channel
French thalweg, coulière
  • thalwegline that connects the lowest points in a valley or river channel
  • coulièreline that connects the lowest points in a valley or river channel
German Talweg
  • Talwegline that connects the lowest points in a valley or river channel
Korean 최심선
  • 최심선 (choesimseon)line that connects the lowest points in a valley or river channel
Norwegian djupål
  • djupålline that connects the lowest points in a valley or river channel
Portuguese talvegue
  • talvegueline that connects the lowest points in a valley or river channel
Russian та́львег
  • та́львег (tálʹveg)line that connects the lowest points in a valley or river channel
Spanish vaguada
  • vaguadaline that connects the lowest points in a valley or river channel
Cite this entry
APA

thalweg. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/thalweg

MLA

“thalweg.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thalweg. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “thalweg,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/thalweg.

Source: thalweg on Wiktionary, CC BY-SA 4.0.