light speed

noun

Definition of light speed

: 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

The stars stretched out into shimmering lines as the fastest hunk of junk in the galaxy hit light speed. Amy Drew Thompson, orlandosentinel.com, "At Galaxy’s Edge, food and drink are another layer in the Star Wars experience," 28 Aug. 2019 In a particle collider, when particles smash together at nearly light speed, their kinetic energy converts into matter, occasionally forming heavy particles such as the Higgs boson. Quanta Magazine, "The Physics Still Hiding in the Higgs Boson," 4 Mar. 2019 Computers track conversations and extract patterns at light speed, rendering them profitable. Fred Turner, Harper's magazine, "Machine Politics," 10 Jan. 2019 This means that the light speeds up by about less than one percent on entering material. Chris Lee, Ars Technica, "Gas jets make beautiful lens for light we can’t normally focus," 21 Dec. 2018 Starships will always jump to light speed and boldly go, but the franchising of outer space by the Marvels and the Disneys has pushed our more inventive creators inward. Jason Kehe, WIRED, "Sci-Fi Invades Netflix—as They Both Invade Your Home," 9 July 2018 But even with scooters things are moving at near-light speed. Ed Wallace, star-telegram, "Promises, Promises," 22 June 2018 In this Australian import, your favorite characters from Endor, Tatooine and beyond trade light speed for strip tease. 8 p.m. Saturday, June 9. Lily Janiak, San Francisco Chronicle, "Lily Janiak’s theater picks, June 3," 31 May 2018 But the biggest obstacle for FTL is the one kids learn in school: light speed is the galactic speed limit. Kathryn Doyle, Popular Mechanics, "Why Don't We Have Faster-Than-Light Travel?," 10 Jan. 2013

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'light speed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of light speed

1914, in the meaning defined above

Keep scrolling for more

Learn More about light speed

Statistics for light speed

Last Updated

6 Sep 2019

Look-up Popularity

Time Traveler for light speed

The first known use of light speed was in 1914

See more words from the same year

Comments on light speed

What made you want to look up light speed? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

authorized for issue (as a bond)

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!