noun[ C ]mainly UK(US usually herniated disk)uk/ˌhɜː.ni.eɪ.tɪd ˈdɪsk/us/ˌhɝːni.eɪ.t̬ɪd ˈdɪsk/
椎间盘脱出
a condition in which the central part of one of the discs between the bones in the spine (= backbone) is squeezed through a tear in the outer part and presses on a nerve, causing pain