Whitehead, Alfred North Syllabification: (White·head, Alfred North)Pronunciation: /ˈ(h)wītˌ(h)ed/Definition of Whitehead, Alfred North (1861–1947), English philosopher and mathematician. He is remembered chiefly for Principia Mathematica (1910–13), on which he collaborated with his student Bertrand Russell. Whitehead, Alfred North in other Oxford dictionaries Definition of Whitehead, Alfred North in the British & World English dictionary