noun
: the one of a pair of sentences joined by means of a transformation that keeps its essential external structure and syntactic status
in “the book that I want is gone”, “the book is gone” is the matrix sentence
noun
: the one of a pair of sentences joined by means of a transformation that keeps its essential external structure and syntactic status
in “the book that I want is gone”, “the book is gone” is the matrix sentence
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012