Definify.com
Webster 1913 Edition
Spall
Spall
,Verb.
T.
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
,Verb.
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.
Webster 1828 Edition
Spall
SPALL
,Noun.