nuclear physics

noun
the branch of physics that deals with the behavior, structure, and component parts of atomic nuclei.

Origin:
1930–35

nuclear physicist, noun
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Collins
World English Dictionary
nuclear physics
 
n
(functioning as singular) the branch of physics concerned with the structure and behaviour of the nucleus and the particles of which it consists
 
nuclear physicist
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
nuclear physics  
The scientific study of the structure and behavior atomic nuclei. See also neutron, proton, strong force.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The era of accelerator-based experimental nuclear physics is born.
But in particle physics terms-and especially when it comes to the nuclear
  physics of antimatter-helium is no lightweight.
The results of scientific research from nuclear physics to maize genetics are a
  matter of national pride.
The project has become more complex than nuclear physics.
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