spall /ˈspɔl/
 殘瓦破片,碎片(vt.)打碎,弄碎(vi.)剝落,裂開,分裂


 Spall n.  The shoulder. [Obs.]


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


 Spall, v. t.
 1. Mining To break into small pieces, as ore, for the purpose of separating from rock.
 2. Masonry To reduce, as irregular blocks of stone, to an approximately level surface by hammering.


 Spall, 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.

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 spall
      n : a fragment broken off from the edge or face of stone or ore
          and having at least one thin edge; "a truck bearing a
          mound of blue spalls" [syn: spawl]