Englishquantum electrodynamics /ˈkwän(t)əm əˈlektrōˌdīˈnamiks, , ˈkwɑn(t)əm əˈlɛktroʊˌdaɪˈnæmɪks, əˈlektrəˌdīˈnamiks, , əˈlɛktrəˌdaɪˈnæmɪks, ēˈlektrōˌdīˈnamiks, , iˈlɛktroʊˌdaɪˈnæmɪks, ēˈlektrəˌdīˈnamiks, iˈlɛktrəˌdaɪˈnæmɪks/
▸ plural noun [treated as singular] a quantum field theory that deals with the electromagnetic field and its interaction with electrically charged particles.