|
|
 |
|
|
|
|
| pla·co·derm [ plákə dùrm ] (plural pla·co·derms) |
noun |
|
| Definition: |
| |
extinct animal resembling fish: an extinct animal resembling a fish that was covered with bony plates and lived in the Paleozoic era. Class Placodermi.
|
| [Mid-19th century. < Greek plak- "flat surface"] |
|
|
|
