superimposition UK /ˌsuːpəɹˌɪmpəˈzɪʃn/US /ˌsupəɹˌɪmpəˈzɪʃən/ noun3 •The process, or the result of superimposing. •The placing of one image on top of another, especially placing a photograph over some other graphic; an image thus placed. •The building of ontological categories of a higher level on top of categories of a lower level. formssuperimpositions
