| 单词 | placoderm |
| 释义 | placoderm pla.co.derm AHD: [pl²k“…-dûrm”] D.J. [6pl#k*7dT8m]K.K. [6pl#k*7dPrm]n.（名词）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语源:1. New Latin Placoderm&9{º} [class name] New Latin Placoderm&9{º} [class name] 2. Greek plax plak- [flat stone, plate] * see pl³k- 1 Greek plax plak- [flat stone, plate] *参见 pl³k- 1 3. -derm-derm |
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