massless
Americanadjective
Other Word Forms
Etymology
Origin of massless
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Such events are capable of generating neutrinos -- tiny, almost massless particles that constantly pass through space and Earth.
From Science Daily ● Nov. 26, 2025
A few have also pursued the axion, a nearly massless particle originally proposed to solve a different problem with the theory of the strong nuclear force.
From Science Magazine ● Nov. 20, 2024
It’s an esoteric search with very real implications—if just one parameter of the Higgs were positive instead of negative, for instance, atoms would have never formed because massless electrons would never stay in their orbit.
From Scientific American ● Aug. 28, 2023
Posting publicly on Twitter, TikTok, YouTube, or Instagram is a lot like using a megaphone to scream to a large, massless, faceless crowd.
From Slate ● Nov. 30, 2022
The electromagnetic attraction is pictured as being caused by the exchange of large numbers of virtual massless particles of spin 1, called photons.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
