coal seam

noun

Definition of coal seam 

: a bed of coal usually thick enough to be profitably mined

Examples of coal seam in a Sentence

Recent Examples on the Web

After the coal seams were depleted the site was left flattened, carved with dirt roads and stripped of vegetation. Leslie Nemo, Scientific American, "From Defiled to Wild—Can a Spent Coal Mine Be Reborn as a Nature Conservation Center?," 11 July 2018 Recently, there has been a resurgence of severe cases of the disease in Appalachian mines, thought in part to be caused by thinner coal seams and more powerful equipment that kicks up more dust. Washington Post, "Feds: Kentucky coal mine supervisors cheated on dust samples," 11 July 2018 Then, in 1959, miners working coal seams broke through the bed of the Susquehanna river, which flowed into the caverns below like bathwater swirling down a plughole. The Economist, "Left in the lurchGlobalisation has marginalised many regions in the rich world," 21 Oct. 2017 New gas source Geologists had suspected there was methane gas buried in Australia’s vast coal seams. Rachel Pannett, WSJ, "How Energy-Rich Australia Exported Its Way Into an Energy Crisis," 10 July 2017 Many researchers believe the disease’s new intensity stems in part from the size of the coal seams being mined. Maya Wei-haas, Smithsonian, "Why Black Lung Disease Is Deadlier Than Ever Before," 16 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coal seam.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of coal seam

1756, in the meaning defined above

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Time Traveler for coal seam

The first known use of coal seam was in 1756

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Rhyming Dictionary: Words that rhyme with coal seam

Britannica.com: Encyclopedia article about coal seam

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