nuclear fission

[ noo-klee-er fish-uhn ]
See synonyms for nuclear fission on

Origin of nuclear fission

First recorded in 1885–90

Words Nearby nuclear fission Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use nuclear fission in a sentence

British Dictionary definitions for nuclear fission

nuclear fission

  1. the splitting of an atomic nucleus into approximately equal parts, either spontaneously or as a result of the impact of a particle usually with an associated release of energy: Sometimes shortened to: fission Compare nuclear fusion

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