spallation

[ spaw-ley-shuh n ]
/ spɔˈleɪ ʃən /

noun Physics.

a nuclear reaction in which several nucleons are released from the nucleus of an atom.

QUIZZES

HEED THE VOX POPULI, AND TAKE THIS WORD OF THE DAY QUIZ!

Test your memory on these verbal firecrackers from the week of June 29 to July 5!
Question 1 of 7
anchorite

Origin of spallation

First recorded in 1945–50; spall + -ation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for spallation

  • Two general types of reactions, known as spallation and fragmentation, are distinguished.

    LRL Accelerators|Lawrence Radiation Laboratory

British Dictionary definitions for spallation

spallation
/ (spəˈleɪʃən) /

noun

physics a type of nuclear reaction in which a photon or particle hits a nucleus and causes it to emit many other particles or photons

Word Origin for spallation

C20: from spall + -ation
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

Medical definitions for spallation

spallation
[ spô-lāshən ]

n.

A nuclear reaction in which nuclei are bombarded by high-energy particles, causing the liberation of protons and alpha particles.
Fragmentation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.