quantum chromodynamicsEnglishOxford Dictionary of Englishquantum chromodynamics /ˌkwɒntəm krəʊmə(ʊ)dʌɪˈnamɪks , ˌkwɒntəm krəʊmə(ʊ)dɪˈnamɪks / (abbreviation QCD) ▸ plural noun [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 ‘colour’.
EnglishOxford Dictionary of English
