peipus

noun

1. a lake in the N Europe, on the border between Estonia and the W Russian Federation. 93 miles (150 km) long; 356 sq. mi. (920 sq. km).

noun

1. a lake in W Russia, on the boundary with Estonia: drains into the Gulf of Finland. Area: 3512 sq km (1356 sq miles)Russian name: Chudskoye Ozero