/ Dictionary / Index B Baikal: Meaning and Definition of Find definitions for: Bai•kal Pronunciation: (bī-käl'), [key] a lake in the Russian Federation, in S Siberia: the deepest lake in the world. 13,200 sq. mi. (34,188 sq. km); 5714 ft. (1742 m) deep. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: baikal (Thesaurus) baigneuse bail Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language