Spall
Spall , noun
[Old French espaule; compare Italian spalla. See Epaule.]
The shoulder. [Obsolete] — Spenser
Spall , noun
[Prov. English spall, spell. See Spale, Spell a splinter.]
A chip or fragment, especially a chip of stone as struck off the block by the hammer, having at least one feather-edge.
Spall , transitive verb
1.
(Mining) To break into small pieces, as ore, for the purpose of separating from rock. — Pryce
2.
(Masonry) To reduce, as irregular blocks of stone, to an approximately level surface by hammering.
Spall , intransitive verb
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.