chemical

adjective
chem·​i·​cal | \ ˈke-mi-kəl How to pronounce chemical (audio) \

Definition of chemical

 (Entry 1 of 2)

1 : of, relating to, used in, or produced by chemistry or the phenomena of chemistry chemical reactions
2a : acting or operated or produced by chemicals a chemical fire extinguisher
b : detectable by chemical means

chemical

noun

Definition of chemical (Entry 2 of 2)

1 : a substance obtained by a chemical process or producing a chemical effect

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Other Words from chemical

Adjective

chemically \ ˈke-​mi-​k(ə-​)lē How to pronounce chemically (audio) \ adverb

Examples of chemical in a Sentence

Adjective

They studied the compound's chemical structure.

Recent Examples on the Web: Adjective

Similar laws passed in other states to require chemical castration are rarely used, Marshall said. The Washington Post, The Denver Post, "Alabama governor signs “chemical castration” bill for some sex offenders," 11 June 2019 By linking the trees’ spectral signatures to their chemical makeup, the two scientists created the most detailed maps of forests yet devised. Paul Tullis, New York Times, "To Map a Coral Reef, Peel Back the Seawater," 10 June 2019 Aphids also squash easily and that sends a chemical signal to all things that eat them as well. oregonlive.com, "‘Little buggers,’ aphids, are munching on broccoli and kale – what can I do? Ask an expert," 7 June 2019 To learn more about Pilot Chemical Company and its wide variety of chemical products, visit www.pilotchemical.com. Jessica Levy, Cincinnati.com, "STEM and non-STEM employees alike power Pilot Chemical Company," 7 June 2019 Aside from funding Smith, the organization's only obvious activities are filing lawsuits under California's strict chemical exposure laws—lawsuits that apparently involve Smith himself providing expert witness testimony. Beth Mole, Ars Technica, "The secretive nonprofit that made millions suing companies over cancer warnings," 6 June 2019 Those small daily exposures can lead to chemical buildup in our bodies. Longreads, "True Roots," 5 June 2019 When his father’s chemical fertilizer business collapsed in the aftermath of the great crash of 1929, Dior had begun selling fashion illustrations to the newspapers, and eventually his original designs to fashionable milliners and couturiers. Hamish Bowles, Vogue, "“Dior: From Paris to the World” Opens at the Dallas Museum of Art," 23 May 2019 The Zumwalts will mix both chemical energy (gunpowder) and electrical energy weapons on the same platform. Kyle Mizokami, Popular Mechanics, "After Only 3 Years in Service, the USS Zumwalt’s Mission Is Changing," 17 May 2019

Recent Examples on the Web: Noun

The environmental advocacy group found traces of the chemical in dozens of Cheerios and Quaker brand products in October. Aimee Picchi, CBS News, "Cheerios, Nature Valley cereals contain Roundup ingredient, study finds," 12 June 2019 Despite its small size, LLISSE would be able to record temperature, pressure, wind speed, wind direction, the amount of solar energy at the surface and a few specific chemicals in the low atmosphere. Shannon Hall, Scientific American, "Venus, Earth’s Evil Twin, Beckons Space Agencies," 12 June 2019 Johnson Controls’ Tyco Fire Products uses the chemicals in the manufacture of fire retardants. Lee Bergquist, Milwaukee Journal Sentinel, "DNR refers Johnson Controls case to state prosecutors over failing to report pollution," 7 June 2019 Then maybe the government would stop the excessive use of chemicals in this region. Nina Strochlic, National Geographic, "An unlikely feud between beekeepers and Mennonites simmers in Mexico," 12 Apr. 2019 Steve Milloy recounts the bad science and sequela of the Tulane University report in Science magazine of hormone disrupting chemicals in many paper receipts. WSJ, "Too Much Academic Science Is Bad Science," 1 Mar. 2019 After leaving her job on Wall Street, founder Melissa Butler began cooking up clean formulas completely free of chemicals in her home. Maya Allen, Marie Claire, "The 15 Best Black-Owned Beauty Brands I'll Never Stop Talking About," 11 Feb. 2019 Otherwise, the residual chemicals in the stripper can discolor the new paint and prevent it from securely bonding to the wood’s surface. Joseph Truini, Popular Mechanics, "How to Safely Remove Paint," 25 Jan. 2019 The company began manufacturing the chemicals in the 1950s and stopped production in 2002. Detroit Free Press, "Snyder wants to sue 3M to recoup costs of contamination," 14 July 2018

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

Adjective

1576, in the meaning defined at sense 1

Noun

1739, in the meaning defined at sense 1

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Statistics for chemical

Last Updated

15 Jun 2019

Look-up Popularity

Time Traveler for chemical

The first known use of chemical was in 1576

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More Definitions for chemical

chemical

adjective

English Language Learners Definition of chemical

 (Entry 1 of 2)

: of or relating to chemistry
: working by means of chemicals

chemical

noun

English Language Learners Definition of chemical (Entry 2 of 2)

: a substance (such as an element or compound) that is made by a chemical process

chemical

adjective
chem·​i·​cal | \ ˈke-mi-kəl How to pronounce chemical (audio) \

Kids Definition of chemical

 (Entry 1 of 2)

: of or relating to chemistry or chemicals

Other Words from chemical

chemically adverb

chemical

noun

Kids Definition of chemical (Entry 2 of 2)

: any substance (as an acid) that is formed when two or more other substances act upon one another or that is used to produce a change in another substance

chemical

adjective
chem·​i·​cal | \ ˈkem-i-kəl How to pronounce chemical (audio) \

Medical Definition of chemical

 (Entry 1 of 2)

1 : of, relating to, used in, or produced by chemistry
2a : acting or operated or produced by chemicals
b : detectable by chemical means

Other Words from chemical

chemically \ -​i-​k(ə-​)lē How to pronounce chemically (audio) \ adverb

chemical

noun

Medical Definition of chemical (Entry 2 of 2)

1 : a substance (as an element or chemical compound) obtained by a chemical process or used for producing a chemical effect

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More from Merriam-Webster on chemical

Spanish Central: Translation of chemical

Nglish: Translation of chemical for Spanish Speakers

Britannica English: Translation of chemical for Arabic Speakers

Comments on chemical

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