请输入您要查询的英文单词:

 

单词 placoderm
释义 pla·co·derm AHD[plăkʹə-dûrm'] D.J.[ˈplækəˌdɜːm]K.K.[ˈplækəˌdɝrm]n.(名词)
  1. Any of various extinct fishes of the Silurian and Devonian periods, characterized by bony plates of armor covering the head and flanks, hinged jaws, and paired fins.盾皮鱼:各种现已灭绝的希留利亚纪和泥盆纪鱼类,特征是头部和两侧被多骨的甲壳盖住、有链的颚和成对的鳍
Etymology语源
    1. New Latin Placodermī [class name] New Latin Placodermī [class name]
    1. Greek plax plak- [flat stone, plate] * see plāk- 1 Greek plax plak- [flat stone, plate] * 参见 plāk- 1
    1. -derm-derm
随便看

 

英汉双解词典包含166908条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/1/6 20:54:47