chem·i·cal
ˈke-mi-kəl 
1
: of, relating to, used in, or produced by chemistry or the phenomena of chemistry
chemical reactions
2
a
: acting or operated or produced by chemicals
a chemical fire extinguisher
b
: detectable by chemical means
1
: a substance obtained by a chemical process or producing a chemical effect
2
Examples of chemical in a Sentence
Adjective
They studied the compound's chemical structure.
Recent Examples on the Web
Anjeanette Damon, ProPublica, 10 Oct. 2025
Sustainability data and analytics company Worldly has acquired GoBlu, creators of chemical inventory management, traceability and compliance platform The BHive.
—Jennifer Bringle, Sourcing Journal, 10 Oct. 2025
Alessandra Freitas, CNN Money, 12 Oct. 2025
Never use bleach to clean the toilet tank as this harsh chemical can damage the tank's interior and lead to faster corrosion.
—Ashlyn Needham, Southern Living, 11 Oct. 2025
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Adjective
Workers have complained of chemical burns from the waste material generated by the tunneling process, and firefighters must decontaminate their equipment after conducting rescues from the project sites.
—Anjeanette Damon, ProPublica, 10 Oct. 2025
Sustainability data and analytics company Worldly has acquired GoBlu, creators of chemical inventory management, traceability and compliance platform The BHive.
—Jennifer Bringle, Sourcing Journal, 10 Oct. 2025
Noun
Federal police are examining whether the chemical used by clandestine factories was purchased from gas stations and later diverted to illicit alcohol production.
—Alessandra Freitas, CNN Money, 12 Oct. 2025
Never use bleach to clean the toilet tank as this harsh chemical can damage the tank's interior and lead to faster corrosion.
—Ashlyn Needham, Southern Living, 11 Oct. 2025
See All Example Sentences for chemical
Cite this Entry
“Chemical.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/chemical. Accessed 14 Oct. 2025.
Copy CitationKids Definition
chemical
1 of 2 adjective
chem·i·cal
ˈkem-i-kəl
1
: of, relating to, used in, or produced by chemistry
2
: acting or operated or produced by chemicals
chemical
2 of 2 noun
: a substance (as an element or compound) obtained from a chemical process or used to get a chemical result
Medical Definition
chemical
1 of 2 adjective
chem·i·cal
ˈkem-i-kəl
1
: of, relating to, used in, or produced by chemistry
2
a
: acting or operated or produced by chemicals
b
: detectable by chemical means
chemical
2 of 2 noun1
: a substance (as an element or chemical compound) obtained by a chemical process or used for producing a chemical effect
2
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