microparticle

noun

mi·​cro·​par·​ti·​cle ˌmī-krō-ˈpär-ti-kəl How to pronounce microparticle (audio)
: a very small particle
especially : one that is microscopic in size

Examples of microparticle in a Sentence

Recent Examples on the Web
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.
At the same time, testing on animal cells can be particularly useful in determining whether microparticles found in creams, gels, and other common products might seep into human skin and potentially pose health risks. Mack Degeurin, Popular Science, 3 Apr. 2025 The researchers introduced iron microparticles into a liquid polymer mixture, and then applied a magnetic field to the goo, causing the microparticles to align themselves into parallel chains. IEEE Spectrum, 11 Apr. 2017 Experts also revealed that the microparticles could also be a trigger for chronic pulmonary inflammation, elevating lung cancer risk. Tom Rogers, Newsweek, 26 Dec. 2024 The device is essentially a sheet made of elastic polymer with magnetic microparticles embedded in it. Michael Irving, New Atlas, 14 Dec. 2024 So, unlike other synthetic fabrics that shed plastic microparticles, this one doesn’t pollute the environment. Kelly Bastone, Outside Online, 31 Oct. 2024 Food Additives Food additives such as aluminum, titanium dioxide (TiO2), and microparticles/nanoparticles. Anna Giorgi, Verywell Health, 28 Oct. 2024 But the new development, featuring a tiny bot made out of magnetic microparticles and polymer, is a huge step forward in biocompatible personalized and targeted drug delivery. New Atlas, 25 Oct. 2024 Adding dyes and microparticles to the water and illuminating them with lasers helped capture the flows on high-speed video. Jennifer Ouellette, Ars Technica, 2 Feb. 2024

Word History

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of microparticle was in 1929

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Cite this Entry

“Microparticle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/microparticle. Accessed 15 Apr. 2025.

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