en•clave
Pronunciation: (en'klāv, än'-), [key] — n., v., -claved, -clav•ing.
—n. - a country, or esp., an outlying portion of a country, entirely or mostly surrounded by the territory of another country.
- any small, distinct area or group enclosed or isolated within a larger one: a Chinese-speaking enclave in London.
—v.t. - to isolate or enclose (esp. territory) within a foreign or uncongenial environment; make an enclave of: The desert enclaved the little settlement.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.