peripheral nervous system
noun [ C usually singular ] biology specialized uk/pəˌrɪf.ər.əl ˈnɜː.vəs ˌsɪs.təm/ us/pəˌrɪf.ɚ.əl ˈnɝː.vəs ˌsɪs.təm/
外周神经系统
the part of the nervous system that includes all the nerves in the body outside the brain and the spinal cord