To form into an enclave

simple past tense and past participle of enclavate

Formed into an enclave

An area that is, for practical purposes, an enclave but does not meet the strict definition: an area that is not completely surrounded by another but can, in practice, be reached only by passing through another area. For instance, a region of a country that is not connected by road to the main part of the country without passing through another country.

plural of pene-enclave