prorupt adjective 1verb 1forms 5 adjective1 •Split into a major part and a minor part joined by a short corridor.When 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. — 1999 verb1 •To cause something to burst forth. formsprorupted · prorupting · prorupts · more prorupt · most prorupt