Prop′a‐gan″da (?), n. [Abbrev. fr. L. de propaganda fide: cf. F. propagande. See Propagate.]
1. (R. C. Ch.) (a) A congregation of cardinals, established in 1622, charged with the management of missions. (b) The college of the Propaganda, instituted by Urban VIII. (1623-1644) to educate priests for missions in all parts of the world.
2. Hence, any organization or plan for spreading a particular doctrine or a system of principles.