stacker

plural stackers

1. Any person or thing that stacks.

   As behavioral scientists we are not good block stackers — we don't replicate enough or build systematically across knowledge bases.

   1991, Joan H. Cantor, Charles C. Spiker, Lewis Paeff Lipsitt, Child Behavior and Development: Training for Diversity, page 168

   1. A worker who stacks the shelves in a supermarket.
   2. A participant in sport stacking.
2. Any device allowing items to be stacked.

   a spring-loaded plate stacker in a cafeteria

   1. An output bin in a document feeding or punch card machine (contrast with hopper).
3. informalA person who collects precious metal in the form of various small objects such as coins and bars.

plural Stackers

1. A surname from German.