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1. Firmly established grade strips or side forms for unformed concrete which will guide the strikeoff in producing the desired plane or shape; Also called screed rail.
2. A tool to strike off the concrete surface.
3. A long, narrow strip of plaster, applied at intervals on a surface to be plastered; carefully leveled and trued to act as a guide for plastering to the specified thickness.
4. A layer of mortar laid on concrete, usually to provide a uniform, level surface.