pseudoradical noun 3adjective 1forms 3 noun3 •One who only claims or appears to be a political radical.He protests the war in Vietnam, but looks with contempt on the hate-filled pseudoradicals who preach the politics of violence. — 2007 •An atom or group within a molecule which behaves like a free radical due to high valence.These pseudoradicals are not directly chain carriers in the reduction of peroxydisulfate, but they can further build up oxygen radical ions. — 2002 •The intersection of the set of nonzero prime ideals of a ring. adjective1 •Claiming or appearing to be politically radical, but not actually so. formspseudoradicals · more pseudoradical · most pseudoradical