A portion of a country's territory not connected to the main part.
Alaska and Kaliningrad are both examples of exclaves.
While there has never been a macronational bedroom nation, some exclaves have been barely larger.2006 March 24, r, “World's smallest enclave?”, in Micro-Nations.com (MNO), archived from the original on 10 Aug 2008:
2 more examples
Spain’s Melilla, one of two small exclaves of EU land on the African continent, has long been the strongest distillation of fortress Europe.2022 March 10, Daniel Howden, “Europe has rediscovered compassion for refugees – but only if they’re white”, in The Guardian:
France, but the shape of a giraffe, with a number of its counties belonging to Wales, with an odd little exclave far up North in Norway? That's border gore.2022 August 24, Ruth Cassidy, “Crusader Kings 3 update looks to tone-down the 'border gore' of endless conquest”, in PC Gamer, archived from the original on 03 Oct 2022:
2
Medicine, SciencesRare A detached part of an organ, as of the pancreas, thyroid (accessory thyroids), or other gland.
exclave
verb
Etymology From ex- + (en)clave.
1
To separate a region in a way that turns it into an exclave.