a prosthesis used to close an opening (as to close an opening of the hard palate in cases of cleft palate)
obturator详细解释
ob.tu.ra.tor n.（名词）An organic structure, such as the soft palate, that closes an opening in the body.闭孔肌：器官性构造，如软腭，用以关闭身体开口A prosthetic device serving to close an opening in the body.修复性装置：用以关闭人体开口的修复性装置
