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
Neetika Walter, Interesting Engineering, 14 Nov. 2025
We are designed to have the chemical capacity to go through metamorphosis at any time, any stage in life that can take different shapes and forms.
—Clayton Davis, Variety, 14 Nov. 2025
Mike Brest, The Washington Examiner, 16 Nov. 2025
By enabling the exclusive chemical recycling of PET from various plastic wastes, this approach provides a practical and efficient pathway to recover valuable chemical building blocks.
—Bojan Stojkovski, Interesting Engineering, 16 Nov. 2025
See All Example Sentences for chemical
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Adjective
Traditional systems rely on chemical amines that bind with carbon dioxide.
—Neetika Walter, Interesting Engineering, 14 Nov. 2025
We are designed to have the chemical capacity to go through metamorphosis at any time, any stage in life that can take different shapes and forms.
—Clayton Davis, Variety, 14 Nov. 2025
Noun
The announcement prompted nefarious actors to begin shipping the precursor chemicals to other countries, where it is then made into fentanyl.
—Mike Brest, The Washington Examiner, 16 Nov. 2025
By enabling the exclusive chemical recycling of PET from various plastic wastes, this approach provides a practical and efficient pathway to recover valuable chemical building blocks.
—Bojan Stojkovski, Interesting Engineering, 16 Nov. 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 22 Nov. 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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