• (n.) Work consisting of or showing checkers varied alternately as to colors or materials. • (n.) Any aggregate of varied vicissitudes.
in architecture, masonry built of two materials, usually stone and flint or stone and brick, so arranged as to make a checkerboard pattern and to ...
Check'er·work` noun 1. Work consisting of or showing checkers varied alternately as to colors or materials. 2. Any aggregate of varied vicissitudes. « How strange a checkerwork of Providence is the life of man. De Foe. » 
a pile of loosely stacked bricks in the regenerator of a regenerative furnace.