柯林斯詞典dorsiflexion /?d??s??fl?k??n/ 1. N the bending back of a part, esp the hand or foot or their digits ( 尤指手、足或其趾)背屈[醫(yī)學(xué)] 返回 dorsiflexion劍橋詞典the action of bending back part of the body , for example the hand 背屈，向背側(cè)彎曲（如手） 返回 dorsiflexion