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* The word, derived from the Chinese hsi nao (hsi: to wash; nao: brain), came out of the Korean War. The third edition of Webster's New International Dictionary (1966) defines it as "prolonged and intensive indoctrination, sometimes including mental torture, in an attempt to induce someone to give up basic political, social, or religious beliefs and attitudes." The newer Random House Dictionary (1966) notes "the use of torture, drugs or psychological-stress techniques," but also points out that the word has been broadened to mean "any method of controlled systematic indoctrination, especially one based on repetition or confusion." The dictionary cites TV commercials as an example.