From Longman Dictionary of Contemporary Englishpar excellencepar ex‧cel‧lence /ˌpɑːr ˈeksəlɑːns $ -eksəˈlɑːns/ adjective [only after noun] BESTthe very best of a particular thing Auguste Escoffier, master chef par excellence
Examples from the Corpus
par excellence• He went on to become the talk-show host par excellence.Origin par excellence (1600-1700) French “by excellence” 