Pronunciation: [ˌɪntəɹˈe͡ɪdi͡əm] (IPA)
Correct spelling for the English word "interradium" is [ˌɪntəɹˈe͡ɪdi͡əm], [ˌɪntəɹˈeɪdiəm], [ˌɪ_n_t_ə_ɹ_ˈeɪ_d_iə_m] (IPA phonetic alphabet).
Correct spelling for interradium