单词	nonsuperimposable
释义	nonsuperimposable adjective non·​su·​per·​im·​pos·​able ˌnän-ˌsü-pər-im-ˈpō-zə-bəl  : not capable of being superimposed : not superimposable nonsuperimposable mirror images especially : chiral nonsuperimposable molecules Word History First Known Use 1890, in the meaning defined above
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