alan turing(n = noun.person) alan mathison turing, turing - English mathematician who conceived of the Turing machine and broke German codes during World War II (1912-1954);
is a kind of mathematician
alan, alan alexander milne, alan bartlett shepard jr., alan hodgkin, alan jay lerner, alan mathison turing, alan paton, alan seeger, alan shepard, alan stewart paton, chester alan arthur, sir alan lloyd hodgkin, turing, turing machine