Pronunciation: (nē"ō-ī"su-lā'shu-niz"um), [key]
—n.(in U.S. politics)
a revival of isolationism arising from increased anti-Soviet and anti-European sentiment and a reluctance to involve the nation in further political and military commitments abroad.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.