Definition of quantum chromodynamics in English:

quantum chromodynamics

Syllabification: quan·tum chro·mo·dy·nam·ics
(abbreviation: QCD)


[treated as singular] Physics
A quantum field theory in which the strong interaction is described in terms of an interaction between quarks mediated by gluons, both quarks and gluons being assigned a quantum number called “color.”.
More example sentences
  • Everyone agrees that the fundamental theory of the strong interaction is a quantum field theory known as quantum chromodynamics, or QCD for short.
  • Today the other three forces are described by the gauge theories of quantum chromodynamics and quantum electrodynamics, which together make up the Standard Model of particle physics.
  • The theory of the strong interaction between quarks - quantum chromodynamics - is approximately invariant under what is called charge symmetry.

Definition of quantum chromodynamics in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day guzzle
Pronunciation: ˈgʌz(ə)l
eat or drink (something) greedily