请输入您要查询的英文单词:

 

单词 conodont
释义 conodont Palæont.|ˈkəʊnəʊdɒnt|
[mod. f. Gr. κῶνος cone + ὀδοντ- tooth.]
A small conical toothlike glistening body, found in Silurian and other ancient strata, and at first supposed to be a tooth of a cyclostomous fish; now more generally considered to be the remains of some invertebrate animal.
1859Owen in Encycl. Brit. XVII. 116/1 The writer finds no form of spine, denticle, or hooklet in any Echinoderm to match the Conodonts; and concludes that they have most analogy with the spines..of naked Molluscs or Annelides.1872Nicholson Palæont. (1879) II. 122 Much difficulty was felt by scientific men in accepting Pander's view that the Conodonts were the teeth of fishes.
随便看

 

英语词典包含277258条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/20 5:50:44