massless

adjective

mass·​less ˈmas-ləs How to pronounce massless (audio)
: having no mass
a massless particle

Examples of massless in a Sentence

Recent Examples on the Web This is, of course, exactly what does happen with the strong nuclear force; gluons are massless, but the strong force is confined and therefore short-range. Sean Carroll, Discover Magazine, 22 Nov. 2012 Neutrinos are nearly massless particles produced in the sun and in energetic events like supernovas, colliding stars, and gamma-ray bursts. Korey Haynes, Discover Magazine, 23 May 2019 If a certain symmetry in the models was broken, the massless partner would go away, leaving only a massive one. Jennifer Ouellette, Ars Technica, 9 Sep. 2022 According to the Standard Model, two gluons, the massless particles that glue together atomic nuclei, easily interact with each other to double their own number, becoming four gluons. Katie McCormick, Quanta Magazine, 1 Aug. 2022 See all Example Sentences for massless 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'massless.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1879, in the meaning defined above

Time Traveler
The first known use of massless was in 1879

Dictionary Entries Near massless

Cite this Entry

“Massless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/massless. Accessed 22 Oct. 2024.

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