polycyclic aromatic hydrocarbon

noun

Definition of polycyclic aromatic hydrocarbon 

: any of a class of hydrocarbon molecules that have multiple carbon rings, and that include carcinogenic substances and environmental pollutants abbreviation PAH

Examples of polycyclic aromatic hydrocarbon in a Sentence

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Initially, astronomers suspected the minuscule objects responsible for the glow were organic molecules called polycyclic aromatic hydrocarbons (PAHs)—essentially, the cosmic equivalent of soot, albeit produced by aging stars rather than smokestacks. Shannon Hall, Scientific American, "Glittering Diamond Dust in Space Might Solve a 20-Year-Old Mystery," 11 June 2018 Coal tar is a byproduct of coal processing and contains polycyclic aromatic hydrocarbons, which can be toxic to aquatic life and humans, and can be found in asphalt sealing, according to a staff report. Alexandra Kukulka, chicagotribune.com, "Glenview gives final approval to ban on coal tar sealants," 4 May 2018 Coal tar is a byproduct of coal processing and contains polycyclic aromatic hydrocarbons, which can be toxic to aquatic life and humans, according to a staff report. Alexandra Kukulka, chicagotribune.com, "Glenview gives initial approval to ban coal tar sealants," 19 Apr. 2018 Coal tar is a byproduct of coal processing and contains polycyclic aromatic hydrocarbons, which can be toxic to aquatic life and humans, according to a staff report. Alexandra Kukulka, chicagotribune.com, "Glenview gives initial approval to ban coal tar sealants," 19 Apr. 2018 Coal tar is a byproduct of coal processing and contains polycyclic aromatic hydrocarbons, which can be toxic to aquatic life and humans, according to a staff report. Alexandra Kukulka, chicagotribune.com, "Glenview to consider ban on coal tar sealants," 4 Apr. 2018 Pyrene is desginated as a polycyclic aromatic hydrocarbon, or PAH. David Grossman, Popular Mechanics, "Scientists Retrace Steps That Created the Building Blocks of Life," 5 Mar. 2018 Processing also creates carcinogenic compounds, such as acrylamide and polycyclic aromatic hydrocarbons. NBC News, "Highly processed foods may raise cancer risk, study finds," 15 Feb. 2018 As Mira Abed reports for the Los Angeles Times, the team suspected bitumen water bottles might have been harmful to ancient people's health because petroleum releases toxic pollutants called polycyclic aromatic hydrocarbons, or PAHs. Brigit Katz, Smithsonian, "Drinking From Ancient Water Bottles Didn’t Hurt Indigenous People—Making Them Did," 29 June 2017

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

1951, in the meaning defined above

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The first known use of polycyclic aromatic hydrocarbon was in 1951

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More Definitions for polycyclic aromatic hydrocarbon

polycyclic aromatic hydrocarbon

noun

Medical Definition of polycyclic aromatic hydrocarbon 

: any of a class of hydrocarbon molecules with multiple carbon rings that include numerous carcinogenic substances and environmental pollutants

called also PAH, polynuclear aromatic hydrocarbon

More from Merriam-Webster on polycyclic aromatic hydrocarbon

Britannica.com: Encyclopedia article about polycyclic aromatic hydrocarbon

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