Definition of superposition noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌsuːpəpəˈzɪʃn//
, BrE//ˌsjuːpəpəˈzɪʃn//
; NAmE NAmE//ˌsuːpərpəˈzɪʃn//
[uncountable, countable] superposition (of something) (on/upon something) (formal or specialist)
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the act of putting something on or above something else At Hubbard's Cave, superposition of historic graffiti upon a layer of soot suggests that the passage had been mined prior to the mid-1820s.