Source : WordNet®

Thomson
     n 1: United States composer who collaborated with Gertrude Stein
          (1896-1989) [syn: {Virgil Thomson}, {Virgil Garnett
          Thomson}]
     2: United States electrical engineer (born in England) who in
        1892 formed a company with Thomas Edison (1853-1937) [syn:
         {Elihu Thomson}]
     3: English physicist (son of Joseph John Thomson) who
        co-discovered the diffraction of electrons by crystals
        (1892-1975) [syn: {George Paget Thomson}, {Sir George
        Paget Thomson}]
     4: English physicist who experimented with the conduction of
        electricity through gases and who discovered the electron
        and determined its charge and mass (1856-1940) [syn: {Joseph
        John Thomson}, {Sir Joseph John Thomson}]