enclave has definitions from the field of geography
1
[ noun ] (geography) an enclosed territory that is culturally distinct from the foreign territory that surrounds it

Used in print

(Edward P. Lawton, "Northern Liberals and Southern...)

Old attitudes are held more tenaciously in the Tidewater than the Piedmont ; so_that a line running down the length of the South marking the upper_limits of tidewater would roughly divide the Old_South from the new , but with , of_course , important minority enclaves .

Related terms

territory district

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