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House Un-American Activities Committee

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noun
  1. an investigative committee of the U.S. House of Representatives. Originally created in 1938 to inquire into subversive activities in the U.S., it was reestablished in 1945 as the Committee on Un-American Activities, renamed in 1969 as the Committee on Internal Security, and abolished in 1975. Abbreviation: HUAC
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for house un-american activities committee

House Un-American Activities Committee

noun
  1. the former name of the Internal Security Committee of the US House of Representatives: notorious for its anti-Communist investigations in the late 1940s and 1950s
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012