cricothyroid
adjective medical specialized uk/ˌkraɪ.kəʊˈθaɪ.rɔɪd/ us/ˌkraɪ.koʊˈθaɪ.rɔɪd/
环状软骨的;甲状软骨的
relating to the cricoid and the thyroid cartilages (= two of the nine cartilages in the larynx, the voice organ in the throat)
the cricothyroid ligament 环甲韧带
the cricothyroid muscle 环甲肌，还甲软骨肌