spallation

/spɔˈleɪʃən/
IPA guide

Definitions of spallation
  1. noun
    (physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles
    “some astronomers believe that the solar system was formed by spallation when the sun was a very young star”
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    type of:
    nuclear reaction
    (physics) a process that alters the energy or structure or composition of atomic nuclei
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