/ Dictionary / Index T Tunguska: Meaning and Definition of Find definitions for: Tun•gu•ska Pronunciation: (toong-g'sku Russ. tn-g'sku), [key] — n. any of three tributaries of the Yenisei River in the central Russian Federation in Asia: includes the Lower Tunguska 2000 mi. (3220 km) long; the Upper Tunguska or the lower course of the Angara; and the Stony Tunguska ab. 975 mi. (1570 km) long. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tunguska (Thesaurus) Tungusic Tunguz Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language