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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Artificial food colorings were originally manufactured from coal tar with most synthetic food dyes today made from petroleum, or crude oil, according to the American Chemical Society (ACS) website. Ashley J. Dimella Fox News, FOXNews.com, 22 Apr. 2025 Not much has changed over the past 30 years in beauty, with ingredients such as cortisone, salicylic acid, and coal tar still being used to treat common conditions such as eczema, acne, and dandruff. Joshua Britton, Time, 2 Apr. 2025 Already, Mecklenburg County has banned coal tar products, and Lowes, Home Depot and Ace Hardware no longer carry products containing the chemical. Alexandria Sands, Axios, 21 Mar. 2025 Zoom in: House Bill 369, the Parking Lot Reform and Modernization Act, would also ban coal tar sealants and other toxic pavement products that are harmful to humans and the environment. Alexandria Sands, Axios, 21 Mar. 2025 See All Example Sentences for coal tar

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of coal tar was in 1785

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Cite this Entry

“Coal tar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coal%20tar. Accessed 2 May. 2025.

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

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