a railroad, ship, etc., used mainly to haul or supply coal.

1865–70; coal + -er1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
coaler (ˈkəʊlə)
1.  a ship, train, etc, used to carry or supply coal
2.  a person who sells or supplies coal

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
Spin coating is more common than electrodeposition, and the same alternatives to the spin coaler mentioned above may be adopted.
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