light speed

noun

: the speed of light
Accelerating particles to near light speed, such machines are ideal for smashing them to make exotic states of matter, blast out new particles, or even search for new dimensions of space.Adrian Cho
also, informal : an extremely fast rate or speed
A Netflix spokesman said it was adding titles at light speed while negotiating daily with studios, which have their own strategy for dealing with online distribution. Josh Quittner

Examples of light speed in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Solar flares travel at light speed and supercharge the solar wind but do not cause northern lights. Jamie Carter, Forbes, 17 Dec. 2024 Most of them really have more to do with societal trends than anything else, and the young tend to jump on trends at light speed. Elizabeth Rayne, Ars Technica, 29 Feb. 2024 Solar flares release radiation in the form of ultraviolet light and X-rays that travel to Earth at light speed. Brandi D. Addison, Austin American-Statesman, 22 Nov. 2024 Meanwhile, the other two pairs, one is a low-top and the other is a high-top shoe, come in black and showoff the vacuum of space and the transition from space travel to light speed, as depicted in the Star Wars film franchise. Rudie Obias, Variety, 26 Oct. 2024 See all Example Sentences for light speed 

Word History

First Known Use

1914, in the meaning defined above

Time Traveler
The first known use of light speed was in 1914

Dictionary Entries Near light speed

Cite this Entry

“Light speed.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20speed. Accessed 24 Dec. 2024.

Last Updated: - Updated example sentences
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