pentachlorophenol

American  

[pen-tuh-klawr-uh-fee-nawl, -nol, -klohr-] / ˌpɛn təˌklɔr əˈfi nɔl, -nɒl, -ˌkloʊr- /

noun

Chemistry.

1. a white, crystalline, water-insoluble powder, C 6 Cl 5 OH, used chiefly in fungicides, disinfectants, and wood preservatives.

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pentachlorophenol British  

/ ˌpɛntəˌklɔːrəˈfiːnɒl /

noun

1. a white crystalline water-insoluble compound used as a fungicide, herbicide, and preservative for wood. Formula: C 6 Cl 5 OH

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Etymology

Origin of pentachlorophenol

First recorded in 1875–80; penta- + chloro- ² + phenol

Example Sentences

That means that the United States is often behind the curve on banning harmful chemicals, such as the highly toxic pesticide pentachlorophenol.

From Salon

Baxter property that drains into Amazon Creek contained levels of pentachlorophenol or copper above the threshold of the company’s pollutant discharge permit.

From Seattle Times

DEQ also noted arsenic in soil on the property and pentachlorophenol spreading in the aquifer under the neighborhood.

From Seattle Times

But pentachlorophenol and the copper formulas were lasting 60 years or longer.

From Washington Post

Creosote and pentachlorophenol were both banned for residential uses in the late 1980s, although they can still be used for railroad ties, utility poles and some farm uses.

From Washington Post