Definition of MacDonaldite in US English:

MacDonaldite

noun

Political History
  • A supporter of Ramsay MacDonald or his policies, especially the moderate socialist policies associated with him, or such policies in general.

adjective

Political History
  • Of, relating to, or supporting Ramsay MacDonald or his policies.

Origin

1920s; earliest use found in Labour Monthly. From the name of James Ramsay MacDonald + -ite.

Pronunciation

MacDonaldite

/məkˈdɒnldʌɪt/