from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The branch of physics that deals with subatomic particles and their interactions.
from the GNU version of the Collaborative International Dictionary of English.
- noun 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
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A branch of
physicsthat studies the elementary constituents of matterand radiation, and the interactions between them.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the branch of physics that studies subatomic particles and their interactions
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