Noun has 2 senses

• yalu river(n = noun.object) yalu - river in eastern Asia; rises in North Korea and flows southwest to Korea Bay (forming part of the border between North Korea and China);




• yalu river(n = noun.act) - a battle in the Korean War (November 1950); when UN troops advanced north to the Yalu River 200,000 Chinese troops crossed the river and drove them back;