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
Neutrinos, which are nearly massless and almost undetectable, come in three types and can morph from one to another as they zip along at light speed.
From Science Magazine • Dec. 8, 2023
At first, they were predicted to be massless, but now scientists know they must have nonzero mass.
From Scientific American • Jun. 7, 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.
