英文字典中文字典51ZiDian.com
|
Ordovician n. 奥陶纪,奥陶系
a. 奥陶纪的 奥陶纪,奥陶系奥陶纪的 Ordovician n 1: from 500 million to 425 million years ago; conodonts and ostracods and algae and seaweeds [synonym: {Ordovician}, {Ordovician period}] Ordovician \Or`do*vi"cian\, a. [From L. Ordovices, a Celtic
people in Wales.] (Geol.) Of or pertaining to a division of the Silurian formation, corresponding in general to the Lower Silurian of most authors, exclusive of the Cambrian. -- n. The Ordovician formation. [1913 Webster]
请选择你想看的字典辞典:
|
安装中文字典英文字典查询工具!
英文字典中文字典相关资料:
|
中文字典-英文字典 2005-2009