placoderm
美 ['plækəˌdərm]英 ['plækədɜːm]
- 网络盾皮鱼
复数：placoderms
placodermplacoderm
1.an extinct animal resembling a fish that was covered with bony plates and lived in the Paleozoic era.
1
2
placoderm复数：placoderms
placoderm1.an extinct animal resembling a fish that was covered with bony plates and lived in the Paleozoic era.