| Answer | Crossword Clue |
|---|---|
| trommels | TROMMEL, a screen used for sifting rock, ore or coal |
| trommel | a screen used for sifting rock, ore or coal |
| trommel | a usually cylindrical or conical revolving screen used especially for screening or sizing rock, ore, or coal |
| trommels | rotary, cylindrical or conical screen for sorting ore, coal, gravel, etc., according to size |
