Definition of "nuclear physics" [nu•cle•ar phys•ics]
The scientific study of the forces, reactions, and internal structures of atomic nuclei.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.