Pronunciation: (kon"sur-tē'nu), [key]
—n., v., -naedPronunciation: (-nud), [key] -na•ingPronunciation: (-nu-ing), [key]
1. a musical instrument resembling an accordion but having buttonlike keys, hexagonal bellows and ends, and a more limited range.
2. See concertina wire.
to fold, crush together, or collapse in the manner of a concertina: The car concertinaed when it hit the truck.
to cause to fold or collapse in the manner of a concertina.
of, pertaining to, or resembling a concertina: concertina pleats.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.