disarticulation 關節脫落
dis·ar·tic·u·la·tion /ˌdɪsɑrˌtɪkjəˈleʃən/ 名詞
Dis·ar·tic·u·late v. t. To sunder; to separate, as joints. -- Dis*ar*tic*u*la*tion n. ◄ ►