caudal
adjective anatomy specialized uk/ˈkɔː.dəl/ us/ˈkɔː.dəl/
(also posterior)尾的
relating to the bottom end of the body, that is the bottom of the feet, or to the bottom end of the spinal cord
caudal anaesthesia 脊尾麻醉
caudal artery 骶中动脉
尾状的
relating to something that is like a tail