- a series of buckets that move in a continuous chain, used to dredge riverbeds, etc, or to excavate land
- (as modifier)a bucket-ladder dredger
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for bucket ladder
A suction dredger being unsuited to the work, a bucket-ladder dredger was employed.