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trommel

[trom-uh l] /ˈtrɒm əl/
noun
1.
a rotary, cylindrical or conical screen for sorting ore, coal, gravel, etc., according to size.
Origin
1875-1880
1875-80, Americanism; < German Trommel drum
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for trommel
  • These finer materials would drop out the bottom of the trommel and then run through a sluice box system to extract gold.
  • The trommel unit is an inclined, rotating cylinder that is three feet in diameter and twelve feet long.
  • 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.
  • The trommel screen removes the fine-sized, non-mica particles.
British Dictionary definitions for trommel

trommel

/ˈtrɒməl/
noun
1.
a revolving cylindrical sieve used to screen crushed ore
Word Origin
C19: from German: a drum
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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