Having folds or bends like the bellows of an accordion:
A small instrument with bellows like an accordion but with buttons in place of keys.
a portable box-shaped free-reed instrument; the reeds are made to vibrate by air from the bellows controlled by the player
Find another word for piano-accordion. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for piano-accordion, like: accordion, concertina and squeeze box.