nano·​par·​ti·​cle | \ ˈna-nə-ˌpär-ti-kəl How to pronounce nanoparticle (audio) , ˈna-nō-\

Definition of nanoparticle

: a microscopic particle whose size is measured in nanometers

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Nanoparticles of a material usually have very different qualities from those that the material has at its ordinary scale, which is one reason why there's such excitement about the possibilities for how they might be used in future technologies. Many uses have already been developed. Aluminum nanoparticles added to rocket fuel can make the fuel burn twice as fast and release much more energy. Silicon nanoparticles are increasing the energy efficiency of solar cells by allowing the energy from ultraviolet light to be captured for the first time. Other nanoparticles are now helping prevent rust in metals, produce stronger batteries, enhance the diagnosis of cancer, and improve the filtering of water, and the number of other applications is growing fast.

Examples of nanoparticle in a Sentence

Recent Examples on the Web

Smalley gave Curley two vials of carbon nanotubes, a kind of nanoparticle that is hollow, with a cylinder structure. Erika Hayasaki, Newsweek, "Kanzius Cancer Machine Gets Its First Human Trial," 21 July 2015 To solve this problem, a group of researchers used a nanoparticle that was doped with ytterbium (a rare-earth metal). Chris Lee, Ars Technica, "Transparent solar cell turns edge on and generates its own light," 12 Dec. 2018 More than 2,000 nanoparticles could fit inside of a red blood cell. Erika Hayasaki, Newsweek, "Kanzius Cancer Machine Gets Its First Human Trial," 21 July 2015 With a slight dip in temperature, the polymer becomes a liquid, which soaks into the wood and carries the nanoparticles with it. Kiona N. Smith, Ars Technica, "Tiny magnets will escort ions out of rare material from a shipwreck," 24 Aug. 2018 An international team of scientists were able to create the fastest mechanical rotation known to exist in history: nanoparticles spinning around each other at a billion times per second. David Grossman, Popular Mechanics, "Scientists Get Nanoparticles Spinning a Billion Times Per Second," 19 July 2018 The Keywords column about battery life in Monday’s Business & Finance section incorrectly said the nanoparticles have a hard graphite-silicon shell. WSJ, "Corrections & Amplifications," 19 Mar. 2018 These start life as nanoparticles of silicon dioxide. Lee Hutchinson, Ars Technica, "The Internet-demanded, partially scientific testing of Ultra-Ever Dry (in HD!)," 4 July 2018 This nanoparticle of carbon and silicon, made by Global Graphene Group, could help lithium-ion batteries store significantly more energy. Christopher Mims, WSJ, "The Battery Boost We’ve Been Waiting for Is Only a Few Years Out," 18 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nanoparticle.' 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 nanoparticle

1983, in the meaning defined above

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19 Feb 2019

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Time Traveler for nanoparticle

The first known use of nanoparticle was in 1983

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More Definitions for nanoparticle


nano·​par·​ti·​cle | \ -ˌpärt-i-kəl How to pronounce nanoparticle (audio) \

Medical Definition of nanoparticle

: a microscopic particle whose size is measured in nanometers drugs bound to biodegradable polymeric nanoparticles

More from Merriam-Webster on nanoparticle

Rhyming Dictionary: Words that rhyme with nanoparticle Encyclopedia article about nanoparticle

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What made you want to look up nanoparticle? Please tell us where you read or heard it (including the quote, if possible).


to boil down or concentrate

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