coal tar

noun

Definition of coal tar 

: 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

Downtown Orlando had one of the operations, although its coal tar drained into a well that funneled the poison to the top portion of the region’s water supply, the Floridan Aquifer. Kevin Spear, OrlandoSentinel.com, "Sanford pollution site cleaned up, feds say," 23 Apr. 2018 The use of coal tar sealants on all residential and commercial projects in Glenview will be prohibited following a Tuesday Board of Trustees vote. Alexandra Kukulka, chicagotribune.com, "Glenview gives final approval to ban on coal tar sealants," 4 May 2018 People with more mild cases of psoriasis may be able to get by with over-the-counter treatments, including topical steroids, anti-dandruff shampoos, and coal tar — but Dr. Iyer recommends seeing a dermatologist for guidance regardless. Emma Sarran Webster, Teen Vogue, "The Most Common Skin Conditions, Explained," 15 June 2018 Naphthalene is obtained from coal tar or petroleum distillation and is used in the manufacture of plastics and is found in mothballs, according to the website PubChem. Justin Jouvenal, Washington Post, "Police investigate whether father gave children poisoned doughnuts to take to his estranged wife," 10 May 2018 The waste material from manufacturing gas was coal tar, a heavy and toxic liquid that readily sank into the site’s sandy soil. Kevin Spear, OrlandoSentinel.com, "Sanford pollution site cleaned up, feds say," 23 Apr. 2018 Quinine was used at the time to treat malaria, but Perkin's creation, made from coal tar, did no such thing. CNN, "20 world-changing inventions from under 20s," 14 Mar. 2018 Most use an active ingredient that’s also found in drugstore brands — salicylic acid, pyrithione zinc or coal tar — mixed with natural oils and conditioners. Rachel Felder, New York Times, "Dandruff Shampoos Have Gone Chic," 20 Feb. 2018 Instead of chemical exfoliants or ketoconazole, Philip B’s Anti-Flake shampoo uses zinc and coal tar to fight dandruff. Ashley Weatherford, The Cut, "The Best Dandruff Shampoos for Every Type of Hair," 19 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coal tar.' 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 tar

1785, in the meaning defined above

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Statistics for coal tar

Last Updated

15 Aug 2018

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Time Traveler for coal tar

The first known use of coal tar was in 1785

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More Definitions for coal tar

coal tar

noun

English Language Learners Definition of coal tar

: a black, sticky liquid made from coal that is used as a fuel and to make various products (such as soap)

coal tar

noun
\ ˈkōl- \

Medical Definition of coal tar 

: tar obtained by distillation of bituminous coal and used in the treatment of some skin diseases by direct local application to the skin

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Britannica.com: Encyclopedia article about coal tar

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