sostinente pianoforte
noun
variants or less commonly sostenente pianoforte
: any of various keyboard instruments resembling the piano (such as the melopiano, piano-violin, or harmonichord) that contain a mechanism for prolonging the strings' tones
called also sostenente piano, sostinente piano, sustaining piano
Word History
Etymology
sostinente alteration of sostenente entry 1
First Known Use
1816, in the meaning defined above