'McCarthyism' definitions:
Definition of 'McCarthyism'
From: WordNet
noun
Unscrupulously accusing people of disloyalty (as by saying they were Communists)
Definition of 'McCarthyism'
From: GCIDE
- McCarthyism \McCarthyism\ prop. n. [from Senator Joseph McCarthy, who repeatedly asserted without evidence that numerous communists were present in the United States government.] Unscrupulously accusing people of disloyalty (as by saying they were Communists). [WordNet 1.5 +PJC]