Tumen
geographical name
Tu·men
ˈtü-ˈmən
river 324 miles (521 kilometers) long in eastern Asia on the border between North Korea, China, and Russia flowing northeast and southeast into the East Sea (the Sea of Japan)
Cite this Entry
“Tumen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Tumen. Accessed 12 Apr. 2025.
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