from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The branch of physics that deals with subatomic particles.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A branch of physics that studies the elementary constituents of matter and radiation, and the interactions between them.
from the GNU version of the Collaborative International Dictionary of English
- n. That branch of physics which investigates the nature of matter, and in particular the properties and behavior of the elementary particles (fundamental particles), of which matter is composed. Included in this field is the more specialized branch of high-energy physics.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the branch of physics that studies subatomic particles and their interactions
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