(n) United States physicist who discovered antimatter in the form of an antielectron that is called the positron (1905-1991), Syn. Carl David Anderson, Carl Anderson
(n) Scottish geneticist (son of John Haldane) who contributed to the development of population genetics; a popularizer of science and a Marxist (1892-1964), Syn. John Burdon Sanderson Haldane, J. B. S. Haldane