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coal tar
noun
: tar obtained by distillation of bituminous coal and used especially as an industrial fuel, in making dyes, and in the topical treatment of skin disorders
Examples of coal tar in a Sentence
Recent Examples on the Web
And much of New York is built atop industrial pollution that was never properly remediated — Stuy Town, for example, sits on the site of a huge manufactured gas plant, which left behind toxic coal tar.
—Kim Velsey, Curbed, 27 June 2024
The contaminants included untreated sewage, which caused cholera and typhoid outbreaks that claimed thousands of lives, and coal tar.
—Rana Hajirasouli, Harvard Business Review, 27 June 2024
As for the coal tar, a discovery that it could be distilled into the building blocks of synthetic dyes caused businesses to stop dumping it into the river and instead repurpose it into valuable dye compounds.
—Rana Hajirasouli, Harvard Business Review, 27 June 2024
Once the steamrollers evened out the crushed limestone track, a final coat of a coal tar binding agent was applied and the track was ready for racing.
—Dawn Mitchell, The Indianapolis Star, 22 May 2024
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Word History
First Known Use
1785, in the meaning defined above
Dictionary Entries Near coal tar
Cite this Entry
“Coal tar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coal%20tar. Accessed 25 Dec. 2024.
Kids Definition
coal tar
noun
: tar obtained from bituminous coal and used especially in making drugs and dyes
Medical Definition
coal tar
noun
: tar obtained by distillation of bituminous coal and used in the treatment of some skin diseases by direct local application to the skin
More from Merriam-Webster on coal tar
Britannica.com: Encyclopedia article about coal tar
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