(music) A musical instrument, like the various accordions, that is a member of the free-reed family of musical instruments, typically having buttons on both ends.

to become compressed into a shape reminiscent of a concertina / to be drawn closer and farther apart repeatedly, or up and down, as if situated on a working concertina's folds

plural of concertina

Third-person singular simple present indicative form of concertina

present participle of concertina

simple past tense and past participle of concertina

plural of concertina wire

Barbed wire formed in large coils that can be expanded like a concertina.