| Answer | Crossword Clue |
|---|---|
| cornstone | a silicious limestone favourable for cereal crops |
| cornstones | CORNSTONE, a silicious limestone favourable for cereal crops |
| cornbrash | a coarse, shelly limestone whose presence in the soil affords good growth for cereal crops |
| cornbrashes | CORNBRASH, a coarse, shelly limestone whose presence in the soil affords good growth for cereal crops |
