polymer
noun
poly·mer
ˈpä-lə-mər 
: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units
Examples of polymer in a Sentence
Recent Examples on the Web
Some microbes possess unique metabolic genes that enable them to produce antimicrobial polymers for medicine, antioxidants like zeaxanthin for eye health, and molecules with anticancer properties.
—
Mrigakshi Dixit, Interesting Engineering, 2 Jan. 2026
The mechanical and chemical stresses involved in breaking down old plastic and reprocessing it into new yarn weaken polymer chains, making the final fabric more brittle and prone to fracturing.
—Alexandra Harrell, Sourcing Journal, 30 Dec. 2025
After dehydration, the emulsion contains particles of around 360 mg of highly concentrated antibodies per milliliter of solution, plus a minute amount of the stabilizing polymer polyethylene glycol (PEG).
—New Atlas, 30 Dec. 2025
Hydrolyzed corn starch, which mimics synthetic performance polymers to lock the look in place for 16 hours, is the star ingredient.
—Kiana Murden, Vogue, 24 Dec. 2025
See All Example Sentences for polymer
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Mrigakshi Dixit, Interesting Engineering, 2 Jan. 2026
The mechanical and chemical stresses involved in breaking down old plastic and reprocessing it into new yarn weaken polymer chains, making the final fabric more brittle and prone to fracturing.
—Alexandra Harrell, Sourcing Journal, 30 Dec. 2025
After dehydration, the emulsion contains particles of around 360 mg of highly concentrated antibodies per milliliter of solution, plus a minute amount of the stabilizing polymer polyethylene glycol (PEG).
—New Atlas, 30 Dec. 2025
Hydrolyzed corn starch, which mimics synthetic performance polymers to lock the look in place for 16 hours, is the star ingredient.
—Kiana Murden, Vogue, 24 Dec. 2025
See All Example Sentences for polymer
Cite this Entry
“Polymer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polymer. Accessed 5 Jan. 2026.
Copy CitationKids Definition
polymer
noun
poly·mer
ˈpäl-ə-mər
: a chemical compound or mixture of compounds that is formed by combination of smaller molecules and consists basically of repeating structural units
Medical Definition
polymer
noun
poly·mer
ˈpäl-ə-mər
: a chemical compound or mixture of compounds formed by polymerization and consisting essentially of repeating structural units
Love words? Need even more definitions?
Merriam-Webster unabridged
Share