gamma ray

noun

Definition of gamma ray

: a photon emitted spontaneously by a radioactive substance also : a photon of higher energy than that of an X-ray

Examples of gamma ray in a Sentence

Recent Examples on the Web Working together, the two satellites can monitor the whole sky, tracing the source of a gamma ray burst to a particular location. Dennis Normile, Science | AAAS, "China launches gamma ray–hunting satellites to trace sources of gravitational waves," 10 Dec. 2020 Astronomers captured the event in x-ray and gamma ray, radio emissions, and visible light images. Theresa Machemer, Smithsonian Magazine, "Astronomers Capture Best View Yet of a Black Hole Spaghettifying a Star," 19 Oct. 2020 Previously, only gamma ray bursts were thought to have this kind of energetic output. Ashley Strickland, CNN, "Astronomers spot blue 'beast' of an explosion in the universe," 26 May 2020 Visible light is one type of electromagnetic radiation; there’s also infrared, x-rays, gamma rays. Rhett Allain, Wired, "The Science of Temperature Is Weirder Than You Think," 14 May 2020 The interactions of positronium in Bose-Einstein condensate form causes gamma rays. Caroline Delbert, Popular Mechanics, "Physicist Believes He Has What It Takes to Make a Gamma Ray Laser," 9 Dec. 2019 Physicists do not think the sun emits any gamma rays from within. Quanta Magazine, "The Sun Is Stranger Than Astrophysicists Imagined," 27 Aug. 2019 Spitzer detects infrared light, while Hubble captures visible and UV light; Compton was designed for gamma rays; and Chandra sees X-rays. Ashley Strickland, CNN, "The Spitzer Space Telescope mission ends today. Here are the incredible things it discovered," 30 Jan. 2020 And the WIMPs tied to the gamma rays are almost as flexible. Quanta Magazine, "Case for Dark Matter Signal Strengthens," 3 Mar. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'gamma ray.' 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 gamma ray

1903, in the meaning defined above

Keep scrolling for more

Learn More about gamma ray

Time Traveler for gamma ray

Time Traveler

The first known use of gamma ray was in 1903

See more words from the same year

Statistics for gamma ray

Last Updated

14 Dec 2020

Cite this Entry

“Gamma ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma%20ray. Accessed 24 Jan. 2021.

Keep scrolling for more

More Definitions for gamma ray

gamma ray

noun
gam·​ma ray | \ ˈga-mə- \

Kids Definition of gamma ray

: a ray that is like an X-ray but of higher energy and that is given off especially by a radioactive substance

gamma ray

noun

Medical Definition of gamma ray

: a photon emitted spontaneously by a radioactive substance also : a high-energy photon usually used in plural

More from Merriam-Webster on gamma ray

Nglish: Translation of gamma ray for Spanish Speakers

Britannica.com: Encyclopedia article about gamma ray

Comments on gamma ray

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

WORD OF THE DAY

Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

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!