WordNet (r) 3.0 (2006):
Tatum n 1: United States biochemist who discovered how genes act by regulating definite chemical events (1909-1975) [syn: Tatum, Edward Lawrie Tatum] 2: United States jazz pianist who was almost completely blind; his innovations influenced many other jazz musicians (1910-1956) [syn: Tatum, Art Tatum, Arthur Tatum]