Quiz: Remember the definition of mal de mer?
town, administrative headquarters of Saran district, Bihar state, northeastern India, near the junction of the Ghaghara and Ganges rivers. Chapra grew in importance as a river mart in the 18th century when the Dutch, French, Portuguese, and English established saltpetre refineries there. It was constituted a municipality in 1864. The town has major rail and road connections and is an agricultural trade centre. Saltpetre and linseed-oil processing are the chief industries. There are several parks, four colleges affiliated with the University of Bihar, and a college affiliated with Kameshwara Singh Darbhanga Sanskrit University. Pop. (1981) 111,564.