Baum, L. Frank Syllabification: (Baum, L. Frank)Pronunciation: /bôm, bäm/Definition of Baum, L. Frank (1856–1919), US journalist and author; full name Lyman Frank Baum. His many children’s books include Father Goose: His Book (1899), The Wonderful Wizard of Oz (1900), and other Oz books.
