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A network of steel reinforcing bars assembled in two or more layers and welded or tied together.

A small quantity of bark, nearly or entirely enclosed in wood.

A small building that was once used for processing bark used in dyeing and tanning.

A dwelling once used by certain Indian tribes in America; usually made of a framework of wood poles, lashed together,

The protective outer layer of a tree, composed of inner, conductive cells and outer corklike tissue.

A special mill-mixed gypsum plaster containing barium salts; used to plaster walls of x-ray rooms.