MUCOCUTANEOUS

\mjˌuːkəkjuːtˈe͡ɪni͡əs], \mjˌuːkəkjuːtˈe‍ɪni‍əs], \m_j_ˌuː_k_ə_k_j_uː_t_ˈeɪ_n_iə_s]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd