gamma-ray astronomy

[ gam-uh-rey ]

/ ˈgæm əˌreɪ /

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noun

the branch of astronomy that deals with the study of celestial objects by means of the gamma rays that come from them.

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His boss, whom he admires, is waiting to meet with him about the big project.

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Origin of gamma-ray astronomy

First recorded in 1960–1965

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use gamma-ray astronomy in a sentence

"He brought Ray Charles to the mix as an influence on rock & roll," E Street Band guitarist Steven Van Zandt once raved.
Joe Cocker's Deep Live Cuts|Asawin Suebsaeng|December 22, 2014|DAILY BEAST
An x-ray two hours later confirms my hunch: my tibia (the big bone behind the shin) is snapped clean in two.
You’re Never ‘Cured’ of an Eating Disorder|Carrie Arnold|December 20, 2014|DAILY BEAST
This is admittedly a loaded question, but do you feel James Earl Ray really killed Martin Luther King Jr.?
Ava DuVernay on ‘Selma,’ the Racist Sony Emails, and Making Golden Globes History|Marlow Stern|December 15, 2014|DAILY BEAST
Thanks to CompStat and strategies added by Police Commissioner Ray Kelly, crime continued to decline.
Eric Garner Was Just a Number to Them|Michael Daly|December 5, 2014|DAILY BEAST

I have been a Ray Harryhausen fan since I was six or seven years old.
‘No Regrets’: Peter Jackson Says Goodbye to Middle-Earth|Alex Suskind|December 4, 2014|DAILY BEAST
A ray of Consciousness is passed over that impression and you re-read it, you re-awaken the record.
Assimilative Memory|Marcus Dwight Larrowe (AKA Prof. A. Loisette)
Gordon turned his pleading eyes on his old friend without a ray of concession; but for a moment he hesitated.
Confidence|Henry James
Presently a ray of inspiration dispelled the cloud from the features of the battered man.
The Joyous Adventures of Aristide Pujol|William J. Locke
A learned Professor declared that no person unacquainted with astronomy could correlate “Moon” to “Omnibus.”
Assimilative Memory|Marcus Dwight Larrowe (AKA Prof. A. Loisette)
The landing was in darkness, but as Gunn spoke he directed the ray of a pocket lamp upon a bronze plate bearing the name "Kazmah."
Dope|Sax Rohmer

British Dictionary definitions for gamma-ray astronomy

gamma-ray astronomy

noun

the investigation of cosmic gamma rays, such as those from quasars

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for gamma-ray astronomy

gamma ray astronomy

The study of astronomical objects by analyzing the gamma rays they emit. Because gamma rays are subject to atmospheric interference that makes them difficult to observe using ground-based telescopes, high-altitude balloons and orbiting observatories are often used to detect them. Most gamma rays in the universe are produced by events such as supernovas and black holes.