annihilation radiation

noun Physics.
electromagnetic radiation produced by the coalescence and mutual annihilation of a positron and an electron, each pair forming two photons having a minimum energy of 0.5 million electron volts each.

1960–65 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To annihilation-radiation
Previous Definition: annihilation radiation
Next Definition: annihilationist
More from
Synonyms and Antonyms for annihilation-radiation
More from
Search for articles containing annihilation-radiation Word FAQs presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature