pi ‧ a ‧ no ‧ la /ˌpiːəˈnəʊlə $ -ˈnoʊ-/ BrE AmE noun [countable] trademark
[ Date: 1900-2000 ; Origin: Pianola , a trademark ]
a piano that is played by machinery inside it. A long roll of paper with holes cut in it gradually turns and works the machinery, pressing down the ↑ key s on the piano to produce music. SYN player piano