DuckCorp Dico

Found one definition

1.                 From Japanese-German FreeDict Dictionary ver. 0.2.0:
                   
   
   
                   
                     
    [news1]  [nf06]  瀬 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 湍 /(en)tʃˈaɪniːz(ja)lˈe̞tə/,  [news1]  [nf06] せ /sˈe̞/
   (noun (common) (futsuumeishi))
   淵・1(1) (f) Untiefe, (2) (f) Stromschnelle