(n) a fragment broken off from the edge or face of stone or ore and having at least one thin edge, Syn.spawl, Example: a truck bearing a mound of blue spalls
(n) (physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles, Example: some astronomers believe that the solar system was formed by spallation when the sun was a very young star
The Collaborative International Dictionary of English (GCIDE) v.0.53
n. [ Prov. E. 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. [ 1913 Webster ]
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. [ 1913 Webster ]
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