Definition of Pianola™ noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌpiəˈnəʊ//
; NAmE NAmE//ˌpiəˈnoʊ//
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a piano that plays automatically by means of a piano roll synonym player piano Word Origin late 19th cent.: apparently a diminutive of piano, the instrument.
See the Oxford Advanced American Dictionary entry: Pianola™