The last bone in the vertebral column in apes and humans (i.e. tailless primates). It is formed by the fusion of 3–5 caudal vertebrae.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。