Also found in: Encyclopedia.
n (functioning as singular)
(Atomic Physics) a gauge theory of the electromagnetic and weak interactions. Also called: electroweak theory Abbreviation: QFD
[C20: flavourdynamics from flavour (referring to quark flavour) + dynamics, modelled on quantum electrodynamics]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014