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thalweg - 4 dictionary results

thal⋅weg

  [tahl-veg, -veyk]
Use thalweg in a Sentence
–noun
1. a line, as drawn on a map, connecting the lowest points of a valley.
2. Chiefly International Law. the middle of the main navigable channel of a waterway that serves as a boundary line between states.
Origin:
1860–65; < G, equiv. to Thal, now obs. sp. of Tal valley (c. dale ) + Weg way 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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thal·weg   (täl'věg')   
n.   Geology
  1. The line defining the lowest points along the length of a river bed or valley.
  2. A subterranean stream.

[German : Tal, Thal, valley (from Middle High German tal, from Old High German) + Weg, way (from Middle High German wec, weg, from Old High German weg; see wegh- in Indo-European roots).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Thalweg

Thal"weg`\, n. [G., fr. thal valley + weg way. See Dale; Way.] (Physiography) (a) A line following the lowest part of a valley, whether under water or not. (b) The line of continuous maximum descent from any point on a land surface, or that cutting all contours and angles.
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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thalweg   (täl'věg')  Pronunciation Key 
  1. The line defining the lowest points along the length of a river bed or valley, whether underwater or not.
  2. A subterranean stream following a course similar to that of an overlying surficial stream.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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