Definition of "Anderson" :

noun: United States physicist who discovered antimatter in the form of an antielectron that is called the positron (1905-1991)

noun: United States contralto noted for her performance of spirituals (1902-1993)

noun: United States dramatist (1888-1959)

noun: United States physicist who studied the electronic structure of magnetic and disordered systems (1923-)

noun: United States author whose works were frequently autobiographical (1876-1941)