/ Dictionary / Index M McCarran-Walter Act: Meaning and Definition of Find definitions for: Mc•Car'ran-Wal'ter Act" Pronunciation: (mu-kar'un wôl'tur), [key] the Immigration and Nationality Act enacted by the U.S. Congress in 1952 that removed racial barriers to immigration and empowered the Department of Justice to deport immigrants or naturalized citizens engaging in subversive activities. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. McCandless McCarthy Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language