[ 'tα:lvɛg , 'θα:lwɛg ]
■ noun Geology a line connecting the lowest points of successive cross sections of a valley.
Origin
C19: from Ger., from obs. Thal 'valley, dale' + Weg 'way'.
THALWEG
Meaning of THALWEG in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004