spall

spall is defined in Webster's Unabridged Dictionary (1913) with 3 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.(Mining) To break into small pieces, as ore, for the purpose of separating from rock. Pryce.
  2. 2.(Masonry) To reduce, as irregular blocks of stone, to an approximately level surface by hammering.
  3. 3.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: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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