[ spaw-ley-shuh n ]
/ spɔˈleɪ ʃən /
a nuclear reaction in which several nucleons are released from the nucleus of an atom.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples 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
/ (spəˈleɪʃən) /
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
Medicine definitions for spallation
[ spô-lā′shən ]
A nuclear reaction in which nuclei are bombarded by high-energy particles, causing the liberation of protons and alpha particles.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.