Definitions of Tatum:

• noun:   United States jazz pianist who was almost completely blind; his innovations influenced many other jazz musicians (1910-1956)
• noun:   United States biochemist who discovered how genes act by regulating definite chemical events (1909-1975)
• name:  A surname (common: 1 in 9090 families; popularity rank in the U.S.: #1083)
• name:  A female given name (rare: 1 in 100000 females; popularity rank in the U.S.: #3294)