island constraint
A technical term in generative grammar referring to syntactic restrictions on movement out of certain structures called islands. Used in academic linguistics contexts.
In generative grammar, island constraints are one of the important concepts.
This sentence is ungrammatical because it violates an island constraint.
A calque of the English linguistic term 'island constraint'. The word 島 (island) is used metaphorically to describe syntactic domains from which extraction is restricted.