The first of two sets of teeth of a mammal. These teeth are smaller than those that replace them (the permanent teeth) and fewer in number, since there are no deciduous molars. See also diphyodont.
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。