| Answer | Crossword Clue |
|---|---|
| armors | protective outer layer (as of a ship, a plant or animal, or a cable) |
| armoring | protective outer layer (as of a ship, a plant or animal, or a cable) |
| integument | A tough outer protective layer, esp. that of an animal or plant |
| integuments | A tough outer protective layer, esp. that of an animal or plant |
| periderms | The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection |
| periderm | The corky outer layer of a plant stem formed in secondary thickening or as a response to injury or infection |
