spine

详细解释:n. 背骨, 脊柱, 尖刺
【医】 脊柱; 棘, 刺; 马蹄嵴

英语解释：

名词 spine:

the series of vertebrae forming the axis of the skeleton and protecting the spinal cord同义词：spinal column, vertebral column, backbone, back, rachis