Prorupt
Adjective
prorupt
- (of a landmass or other shape) Split into a major part and a minor part joined by a short corridor.
- 1999 Milan N. Vego - Naval Strategy and Operations in Narrow SeasWhen a country - Thailand for example - is nearly compact in shape but also has part of its territory in the form of a corridor leading away from its main body, it is said to have a prorupt shape.