Correct spelling for the English word "Innixion" is [ɪnnˈɪkʃən], [ɪnnˈɪkʃən], [ɪ_n_n_ˈɪ_k_ʃ_ə_n] (IPA phonetic alphabet).
I apologize, but I couldn't find any credible or widely recognized sources that define the term "innixion." It is possible that the term is rare, specific to a particular field, or possibly a less commonly used word. If you have any additional information or context about the term, I would be happy to try to provide a definition based on that.