界河

jièhé
border river (between countries or regions)

CEDICT

  1. (～鎮) Jiehe (a town in Tengzhou, Zaozhuang, Shandong, China)
  2. Jiehe (a town in Tengzhou, Zaozhuang, Shandong, China)
  3. boundary river (between two countries or regions)

Wiktionary

兩國或兩地區自然分界線的河流。

重編國語辭典

Entry Composition

1 界 jiè
  1. (bound form) boundary; border
  2. (bound form) realm
2 河 hé
  1. (bound form) the Yellow River
  2. (bound form) the Milky Way
  3. (bound form) (on restaurant menus) rice noodles 河粉 héfěn

classifiers: 條, 道