紧箍儿 (緊箍兒) jǐngū'ér

jǐngū'ér noun contracting hoop
Domain: Literature 文学 , Subdomain: China , Concept:
Notes: The golden head band given by Guanyin to the Monkey King in the novel 西遊記 ”Journey to the West” (Guoyu '緊箍兒')