af·​ter·​glow | \ ˈaf-tər-ˌglō How to pronounce afterglow (audio) \

Definition of afterglow

1 : a glow remaining where a light has disappeared
2 : a pleasant effect or feeling that lingers after something is done, experienced, or achieved basking in the afterglow of success

Examples of afterglow in a Sentence

the afterglow of the sunset
Recent Examples on the Web Simmons told me in the afterglow of Denver’s 24-19 victory against Cleveland on the first Sunday of November. Mark Kiszla, The Denver Post, "Kiszla: The one must-win for Broncos in what remains of 2019 season is signing Justin Simmons to new contract," 23 Nov. 2019 Across 20 minutes of initial observations, MAGIC captured thousands of high-energy photons from GRB 190114c’s fresh afterglow. Lee Billings, Scientific American, "Record-Breaking Gamma Rays Reveal Secrets of the Universe’s Most Powerful Explosions," 20 Nov. 2019 By analyzing tiny variations in this ancient afterglow, scientists can peer back in time to understand how the universe evolved. Sarah Kaplan, Washington Post, "Nobel Prize in physics awarded for research on exoplanets and the structure of the universe," 8 Oct. 2019 The afterglow from that triple play continues to light the way for Waller-Bridge, who will next be seen hosting this week’s edition of Saturday Night Live, with musical guest Taylor Swift. Dan Snierson,, "Watch Phoebe Waller-Bridge prepare to host SNL whilst holding three Emmys," 2 Oct. 2019 To infer its value from the early universe, scientists use data from the Planck satellite, which measured the cosmic microwave background, the afterglow emitted just 380,000 years or so after the big bang. Michael Greshko, National Geographic, "The universe might be acting weird. Cosmic 'lenses' may help reveal why.," 12 Sep. 2019 His early radicalism has aged into a vague, self-satisfied liberalism, warmed by the afterglow of his participation in historical moments, or at least his proximity to them. New York Times, "Bob Dylan and the Myth of Boomer Idealism," 17 July 2019 Even after nearly half a day, the afterglow still had photons with energies of 100 to 440 gigaelectronvolts. Megan Gannon, Smithsonian, "Astronomers Detect Record-Breaking Gamma Ray Bursts From Colossal Explosion in Space," 14 Jan. 2019 In the afterglow of UCF’s dominant win over Stanford on Saturday evening, coach Josh Heupel was asked whether another victory over a team from a Power 5 conference thrust the program back into the national discussion. Matt Murschel,, "Confident UCF ignores rankings buzz, chases win at Pitt," 19 Sep. 2019

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

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First Known Use of afterglow

1832, in the meaning defined at sense 1

History and Etymology for afterglow

after- + glow entry 2

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Time Traveler for afterglow

Time Traveler

The first known use of afterglow was in 1832

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Statistics for afterglow

Last Updated

19 Dec 2019

Cite this Entry

“Afterglow.” The Dictionary, Merriam-Webster Inc., Accessed 23 January 2020.

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More Definitions for afterglow


How to pronounce afterglow (audio)

English Language Learners Definition of afterglow

: a glowing light remaining in the sky after the sun has set
: a happy feeling that remains after a successful or emotional event


af·​ter·​glow | \ ˈaf-tər-ˌglō \

Kids Definition of afterglow

1 : a glow remaining (as in the sky after sunset) where a light has disappeared
2 : a pleasant feeling that remains after some good experience the afterglow of victory

More from Merriam-Webster on afterglow

Rhyming Dictionary: Words that rhyme with afterglow

Nglish: Translation of afterglow for Spanish Speakers

Comments on afterglow

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out of the ordinary or unreasonable

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