1. Free-reed instrument played like an accordion by pushing its ends together to force air through the reeds
   "The musician played a lively tune on the concertina"
    
2. Coiled barbed wire used as an obstacle
   "The soldiers carefully navigated through the concertina wire surrounding the military base"

1. Collapse like a concertina
   "The car's front end concertinaed in the collision"

Derived forms: concertinaing, concertinas, concertinaed

Type of: barbed wire, barbwire, collapse, free-reed instrument

Encyclopedia: Concertina