[{"Bold_text": "noun", "List Items": ["the part of a projecting stone or brick tailed or inserted in a wall.", "tailings,Building Trades.gravel, aggregate, etc., failing to pass through a given screen.the residue of any product, as in mining; leavings.", "Building Trades.gravel, aggregate, etc., failing to pass through a given screen.", "the residue of any product, as in mining; leavings."]}]