Haldane n 1: Scottish geneticist (son of John Haldane) who contributed to the development of population genetics; a popularizer of science and a Marxist (1892-1964) [syn: {Haldane}, {J. B. S. Haldane}, {John Burdon Sanderson Haldane}] 2: Scottish physiologist and brother of Richard Haldane and Elizabeth Haldane; noted for research into industrial diseases (1860-1936) [syn: {Haldane}, {John Haldane}, {John Scott Haldane}] 3: Scottish writer and sister of Richard Haldane and John Haldane (1862-1937) [syn: {Haldane}, {Elizabeth Haldane}, {Elizabeth Sanderson Haldane}] 4: Scottish statesman and brother of Elizabeth and John Haldane (1856-1928) [syn: {Haldane}, {Richard Haldane}, {Richard Burdon Haldane}, {First Viscount Haldane of Cloan}]