Definition of oratorio noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌɒrəˈtɔːriəʊ//
; NAmE NAmE//ˌɔːrəˈtɔːrioʊ//
, NAmE//ˌɑːrəˈtɔːrioʊ//
(pl. oratorios) Pieces of music
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a long piece of music for singers and an orchestra, usually based on a story from the Bible compare cantata See related entries: Pieces of music Word OriginItalian, from ecclesiastical Latin oratorium ‘oratory’, from the musical services held in the church of the Oratory of St Philip Neri in Rome, Italy.
See the Oxford Advanced American Dictionary entry: oratorio