とびち【飛び地,飛地】


■ An exclave

A detached piece of one administrative region completely surrounded by at least one other region.

This is much easier to understand from the example, a photograph of part of a map of 葛生町(くずうまち) in 栃木県(とちぎけん). Just under the sheep's nose is an "island" labelled 葛生町飛地, which means that it is a part of 葛生 but is completely surrounded by 栃木市. (Actually it is cut off only by a curious narrow strip along the river.)

The English term "exclave" is somewhat obscure, and tends to be used mostly by individuals with a passionate interest in exclaves. At least in Britain, a common notation on maps is simply "detached" (or "Det."), as in the case of the hundred of Maelor, a lump of Flintshire which used to be completely surrounded by Cheshire, Shropshire, and Denbighshire.


This entry was created by Brian Chandler.


Created 2000-06-19.

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