Helmand Syllabification: (Hel·mand)Pronunciation: /ˈhelmənd/Definition of Helmand the longest river in Afghanistan. Rising in the Hindu Kush, it flows southwest for 700 miles (1,125 km) before emptying into marshland near the Iran-Afghanistan frontier. a province in SW Afghanistan. Helmand in other Oxford dictionaries Definition of Helmand in the British & World English dictionary
