endocentric

adjective

(व्याकरण) अंतःकेंद्रिक

fulfilling the grammatical role of one of its constituents

when `three blind mice' serves as a noun it is an endocentric construction
जब 'three blind mice' संज्ञा का काम करता है तो वह अंतःकेंद्रिक रचना है