spall

1. n. The shoulder. Source: opted

2. n. A chip or fragment, especially a chip of stone as struck off the block by the hammer, having at least one feather-edge. Source: opted

3. v. t. To break into small pieces, as ore, for the purpose of separating from rock. Source: opted

4. v. t. To reduce, as irregular blocks of stone, to an approximately level surface by hammering. Source: opted

5. v. i. To give off spalls, or wedge-shaped chips; -- said of stone, as when badly set, with the weight thrown too much on the outer surface. Source: opted

6. n. a fragment broken off from the edge or face of stone or ore and having at least one thin edge Source: wordnet

7. n. a fragment broken off from the edge or face of stone or ore and having at least one thin edge Source: ecdict

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