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 chemical (audio) \ adverb

Examples of chemical in a Sentence

Adjective They studied the compound's chemical structure.
Recent Examples on the Web: Adjective This definition would mean that the act was not only tactical but also just bumps up against the CWC, or chemical weapons convention. Ariel Cohen, Forbes, "Iran Accused Of Eco-Terrorism: Purposefully Dumping Oil In Israeli Waters," 4 Mar. 2021 The Biden administration also announced sanctions under the U.S. Chemical and Biological Weapons Control and Warfare Elimination Act for Russian entities, including those the U.S. said worked to research, develop and test chemical weapons. Time, "The U.S. Sanctions Russian Officials Over the Nerve-Agent Attack on Alexei Navalny," 3 Mar. 2021 In a bid to hold Mr. Assad and his inner circle accountable, a complaint was filed in France with a special war crimes unit this week, focusing on the August 2013 chemical weapons attacks in eastern Ghouta that left 1,400 dead. Scott Peterson, The Christian Science Monitor, "Syria, after 10 years of conflict: No war and no peace," 3 Mar. 2021 Navalny, during the months in question, was recovering in Germany from a chemical weapons attack widely regard as carried out by Russian security services. Joel Gehrke, Washington Examiner, "US and EU to 'coordinate' extra Russia sanctions to defend Alexei Navalny," 23 Feb. 2021 In 2018, B-1Bs pummeled Syrian government chemical weapons facilities with a salvo of JASSM missiles. Kyle Mizokami, Popular Mechanics, "The Air Force is Sending B-1B Bombers to Norway for a Not-So-Subtle Reason," 12 Feb. 2021 The defense is applicable if at the time of operation the person was not intoxicated, the person did not cause a traffic accident and the substance was identified by means of a chemical test. Justin L. Mack, The Indianapolis Star, "Every marijuana reform bill in Indiana died this year except for one. Here's what it says.," 26 Mar. 2021 Navalny was arrested in January on his return to Russia from Germany, where he was treated for poisoning with a chemical nerve agent during an August trip to Siberia. Washington Post, "Putin foe Navalny once described prison life with dark humor. Now his messages are just dark.," 26 Mar. 2021 Ted Turlings, a chemical ecologist at the University of Neuchâtel in Switzerland and an author on the new study, told me that the event must have occurred at least 35 million years ago. Katherine J. Wu, The Atlantic, "Whiteflies Pulled Off a Grand Genetic Heist," 25 Mar. 2021 Recent Examples on the Web: Noun Steamers offer a chemical-free way to clean and disinfect appliances and difficult dirt and grease that builds up on your stovetop or the grout in your bathroom, said Maker. Hanna Horvath, NBC News, "6 best clothes steamers and garment steamers of 2021," 25 Mar. 2021 Instead, opt for cedar, oak, redwood, stones, and bricks, which make excellent, long-lasting, chemical-free choices. Kelly Reilly, Better Homes & Gardens, "8 Common Raised Garden Mistakes You Might Be Making," 10 Mar. 2021 Chemicals make up everything around us – nothing can truly be chemical free. Emma Seymour, Good Housekeeping, "What Is Greenwashing?," 9 Mar. 2021 Johnstone said Nairn moved to a largely chemical-free program in 2016, in line with the banning of products to suppress worms and grubs and prevent turf disease. Tom Pilcher, CNN, "How otters and beavers returned to one of the world's greatest golf courses," 5 Mar. 2021 This year, try your hand at a new way of dyeing Easter eggs with an all-natural, chemical-free approach. Madison Alcedo, Country Living, "How to Make Your Own Natural Egg Dye With Items From Your Pantry," 3 Mar. 2021 But the good news, Dalton-Smith stresses, is that rest is the most underused, chemical-free, safe, and effective alternative therapy available to us. Amy Blaschka, Forbes, "This Is Why You’re So Exhausted; Here’s How To Fix It," 24 Feb. 2021 Calitri, a chemical engineer by training, was in charge of Pfizer’s manufacturing site in Kalamazoo, Michigan, where the constituent parts of the vaccine would eventually be assembled before being shipped across the country. Sue Halpern, The New Yorker, "Why COVID-19 Vaccines Aren’t Yet Available to Everyone," 13 Mar. 2021 There, Shotwell soaked up career advice from a panel that included an electrical engineer, a chemical engineer, and a mechanical engineer. Eric Berger, Wired, "How Elon Musk Convinced Gwynne Shotwell to Join SpaceX," 2 Mar. 2021

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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Time Traveler for chemical

Time Traveler

The first known use of chemical was in 1576

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Statistics for chemical

Last Updated

12 Apr 2021

Cite this Entry

“Chemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chemical. Accessed 14 Apr. 2021.

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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 chemical (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

More from Merriam-Webster on chemical

Nglish: Translation of chemical for Spanish Speakers

Britannica English: Translation of chemical for Arabic Speakers

Comments on chemical

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