a rotary, cylindrical or conical screen for sorting ore, coal, gravel, etc., according to size.

1875–80, Americanism; < German Trommel drum Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To trommel
World English Dictionary
trommel (ˈtrɒməl)
a revolving cylindrical sieve used to screen crushed ore
[C19: from German: a drum]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Example sentences
These finer materials would drop out the bottom of the trommel and then run
  through a sluice box system to extract gold.
After curing, the product is run through a screening process using a trommel.
After the bark is reduced, it is screened with a trommel and then is stored in
  covered bins.
It is then crushed and washed through trommel screens and again crushed with
  roll crushers.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature