gamma ray

noun Physics.

a photon of penetrating electromagnetic radiation (gamma radiation ) emitted from an atomic nucleus.

a photon emitted by an electron as a result of internal conversion.

electromagnetic radiation with wavelengths shorter than approximately one tenth of a nanometer.

Origin of gamma ray

First recorded in 1900–05

Words nearby gamma ray

gamma hydroxybutyrate, gamma-interferon, gamma iron, gamma knife, gamma radiation, gamma ray, gamma-ray astronomy, gamma-ray burst, gamma rays, gamma stock, gammat

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for gamma ray

Well, maybe it was a gamma-ray burst, or maybe it was something else, cautioned some others.
The Gamma-Ray Burst That Wasn’t|Matthew R. Francis|June 1, 2014|DAILY BEAST
Then you place each card, in turn, on a holder close to the gamma-ray detector for a period of 10 minutes.
The Atomic Fingerprint|Bernard Keisch
Gamma-ray spectra are collected all day, first from a sample, then from its accompanying standard.
The Atomic Fingerprint|Bernard Keisch
Meanwhile they amused themselves occasionally by planting a gamma-ray bomb in each of Mars' major cities.
The Ultimate Weapon|John Wood Campbell

The two gamma-ray spectra you obtain look like those in the figure on the opposite page.
The Atomic Fingerprint|Bernard Keisch
The figure on the next page shows the gamma-ray spectrum for the patient.
The Atomic Fingerprint|Bernard Keisch

Medical definitions for gamma ray

gamma ray

n.

Electromagnetic radiation emitted from the nucleus of an atom by radioactive decay and having energies in a range from ten thousand (104) to ten million (107) electron volts.

Scientific definitions for gamma ray

gamma ray

A stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Because the wavelengths of gamma rays are shorter than those of x-rays, gamma rays have greater energy and penetrating power than x-rays. Gamma rays are emitted by pulsars, quasars, and radio galaxies but cannot penetrate the Earth's atmosphere. See more at radioactive decay.

单词	gamma ray
释义	gamma ray noun Physics. a photon of penetrating electromagnetic radiation (gamma radiation ) emitted from an atomic nucleus. a photon emitted by an electron as a result of internal conversion. electromagnetic radiation with wavelengths shorter than approximately one tenth of a nanometer. Origin of gamma ray First recorded in 1900–05 Words nearby gamma ray gamma hydroxybutyrate, gamma-interferon, gamma iron, gamma knife, gamma radiation, gamma ray, gamma-ray astronomy, gamma-ray burst, gamma rays, gamma stock, gammat Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for gamma ray Well, maybe it was a gamma-ray burst, or maybe it was something else, cautioned some others. The Gamma-Ray Burst That Wasn’t\|Matthew R. Francis\|June 1, 2014\|DAILY BEAST Then you place each card, in turn, on a holder close to the gamma-ray detector for a period of 10 minutes. The Atomic Fingerprint\|Bernard Keisch Gamma-ray spectra are collected all day, first from a sample, then from its accompanying standard. The Atomic Fingerprint\|Bernard Keisch Meanwhile they amused themselves occasionally by planting a gamma-ray bomb in each of Mars' major cities. The Ultimate Weapon\|John Wood Campbell The two gamma-ray spectra you obtain look like those in the figure on the opposite page. The Atomic Fingerprint\|Bernard Keisch The figure on the next page shows the gamma-ray spectrum for the patient. The Atomic Fingerprint\|Bernard Keisch Medical definitions for gamma ray gamma ray n. Electromagnetic radiation emitted from the nucleus of an atom by radioactive decay and having energies in a range from ten thousand (104) to ten million (107) electron volts. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for gamma ray gamma ray A stream of high-energy electromagnetic radiation given off by an atomic nucleus undergoing radioactive decay. Because the wavelengths of gamma rays are shorter than those of x-rays, gamma rays have greater energy and penetrating power than x-rays. Gamma rays are emitted by pulsars, quasars, and radio galaxies but cannot penetrate the Earth's atmosphere. See more at radioactive decay. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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