Definition of MacDonaldism in English:

MacDonaldism

Pronunciation /məkˈdɒnldɪz(ə)m/

noun

historical
  • The political and economic policies pursued by Ramsay MacDonald and his supporters, sometimes characterized as a moderate socialism.

Origin

1920s; earliest use found in Labour Monthly. From the name of James Ramsay MacDonald, British statesman and prime minister, leader of the first Labour governments and of a non-Labour coalition administration + -ism.