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7 Essential Words of Fall

fly ash

noun
1.
fine particles of ash of a solid fuel carried out of the flue of a furnace with the waste gases produced during combustion.
2.
such ash recovered from the waste gases, used chiefly as a reinforcing agent in the manufacture of bricks, concrete, etc.
Origin
1930-1935
1930-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for fly ash
  • We can make a similar concrete by utilizing the fly ash from coal fired power plants.
  • Burning coal is nasty business, concentrating all kinds of toxic metals and resulting in potentially deadly fly ash.
  • Coal fly ash can be used as a mineral filler in hot mix asphalt paving applications.
British Dictionary definitions for fly ash

fly ash

noun
1.
fine solid particles of ash carried into the air during combustion, esp the combustion of pulverized fuel in power stations
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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