Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun qcd

1 sense of qcd

Sense 1
quantum chromodynamics, QCD -- (a theory of strong interactions between elementary particles (including the interaction that binds protons and neutrons in the nucleus); it assumes that strongly interacting particles (hadrons) are made of quarks and that gluons bind the quarks together)
       => quantum field theory -- (the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states)