(Anatomy)either of two muscles covering the outer front part of the pelvis on each side and involved in movements of the thigh and hip (剖)闭孔肌 ■[as modifier]relating to this muscle or to the obturator foramen 闭孔肌的,闭孔的
语源
early 18th cent.: from medieval Latin, literally obstructor', from obturare 'stop up'