1. a river in southeastern Siberia that flows northwest from Lake Baikal to become a tributary of the Yenisei River; [syn: Angara, Angara River, Tunguska, Upper Tunguska]
WordNet (r) 3.0 (2006):
Upper Tunguska
n 1: a river in southeastern Siberia that flows northwest from
Lake Baikal to become a tributary of the Yenisei River
[syn: Angara, Angara River, Tunguska, Upper
Tunguska]