Pronunciation: [ˌɪdɪəsfˈe͡əɹə͡ʊsˌə͡ʊm] (IPA)
Correct spelling for the English word "idiosphaerosome" is [ˌɪdɪəsfˈe͡əɹə͡ʊsˌə͡ʊm], [ˌɪdɪəsfˈeəɹəʊsˌəʊm], [ˌɪ_d_ɪ__ə_s_f_ˈeə_ɹ_əʊ_s_ˌəʊ_m] (IPA phonetic alphabet).