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.
Neutrinos are extremely small, nearly massless particles that constantly pass through space, planets, and even our bodies, yet rarely interact with anything.
From Science Daily ● Mar. 3, 2026
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
After all, neutrinos have repeatedly surprised physicists, who once assumed that the particles came in only one type and were completely massless and inert.
From Science Magazine ● Sep. 28, 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.
