/tyuu"muen"/ , n. Pinyin, Wade-Giles.
a river in E Asia, flowing NE along the China-North Korea border and then SE along the border between China and Russia to the Sea of Japan. ab. 325 mi. (525 km) long. Also called, Wade-Giles, Tumen Chiang /jyahng/ ; Pinyin, Tumen Jiang /jyahng/ .