petrochemical

noun

pet·​ro·​chem·​i·​cal ˌpe-trō-ˈke-mi-kəl How to pronounce petrochemical (audio)
: a chemical isolated or derived from petroleum or natural gas
petrochemistry noun

Examples of petrochemical in a Sentence

Recent Examples on the Web
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Ratcliffe, who founded petrochemical company Ineos, is one of Britain’s richest men. Issy Ronald, CNN Money, 12 Feb. 2026 But Ratcliffe has long waded in as the owner of a petrochemical business based in Cologne, advocating, for example, for Brexit in 2016. Andy Mitten, New York Times, 12 Feb. 2026 And state oil company NNPC is holding talks with independent companies to take over the operation of the government’s moribund refineries, NNPC chief Bayo Ojulari said, including one last week with a Chinese petrochemical plants builder. Alexander Onukwue, semafor.com, 9 Feb. 2026 This petrochemical product is ubiquitous in modern life, from cosmetics to food packaging. Theodore J. Karamanski, Chicago Tribune, 6 Feb. 2026 See All Example Sentences for petrochemical

Word History

Etymology

petro- + chemical entry 2

First Known Use

1942, in the meaning defined above

Time Traveler
The first known use of petrochemical was in 1942

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Cite this Entry

“Petrochemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petrochemical. Accessed 16 Feb. 2026.

Kids Definition

petrochemical

noun
pet·​ro·​chem·​i·​cal ˌpe-trō-ˈkem-i-kəl How to pronounce petrochemical (audio)
: a chemical obtained from petroleum or natural gas

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