McCarthyism
Concise Oxford English Dictionary © 2008 Oxford University Press:
McCarthyism/məˈkɑːθiɪzəm/
▶noun a campaign against alleged communists in the US government and other institutions carried out under Senator Joseph McCarthy from 1950 to 1954.
– derivatives
McCarthyist adjective & noun,
McCarthyite adjective & noun.
McCarthyist adjective & noun,
McCarthyite adjective & noun.
'McCarthyism' also found in these Oxford entries:

