| Answer | Crossword Clue |
|---|---|
| TEREDOS | Ship borers |
| AUGERS | Borers. |
| TIRERS | Borers |
| DRILLS | Borers |
| AUGERS | Wood borers |
| frass | the refuse of wood borers |
| frasses | FRASS, the refuse of wood borers |
| greenhearts | A South American evergreen tree of the laurel family, yielding hard greenish timber that is used for marine work because of its resistance to marine borers |
| greenheart | A South American evergreen tree of the laurel family, yielding hard greenish timber that is used for marine work because of its resistance to marine borers |
