concertina movement
noun
a principle of table construction in which hinged sections of the frame, ordinarily folded inward out of sight, can be pulled into line with the parts of the frame ordinarily seen to permit the addition of leaves.
Also called
concertina action.
Words nearby concertina movement
concertato,
concerted,
concertgebouw,
concertgoer,
concertina,
concertina movement,
concertina table,
concertina wire,
concertino,
concertize,
concertmaster