单词	pentachlorophenol
释义	pentachlorophenol noun pen·​ta·​chlo·​ro·​phe·​nol ˌpen-tə-ˌklȯr-ə-ˈfē-ˌnōl  -fi-ˈnōl  : a crystalline compound C6Cl5OH used especially as a wood preservative and fungicide and a disinfectant Example Sentences Recent Examples on the Web But pentachlorophenol and the copper formulas were lasting 60 years or longer. Jeanne Huber, Washington Post, 17 Aug. 2020 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. Jeanne Huber, Washington Post, 17 Aug. 2020 Near Alexandra, in central Louisiana, two plants that use coal-tar creosote and pentachlorophenol to pressure-treat and preserve wooden objects like rail ties and telephone poles operate directly adjacent to communities. Justin Nobel, Longreads, 13 July 2017 Pentachlorophenol contains dioxins, which are used in making chemical weapons, like Agent Orange, and can peel away human skin and cause leukemia. Justin Nobel, Longreads, 13 July 2017 Word History First Known Use 1869, in the meaning defined above Medical Definition pentachlorophenol noun pen·​ta·​chlo·​ro·​phe·​nol ˌpent-ə-ˌklōr-ə-ˈfē-ˌnōl  -ˌnȯl-  -ˌklȯr-, -fi-ˈ : a crystalline compound C6Cl5OH used especially as a wood preservative, insecticide, and fungicide called also PCP
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