MASTOID BONE
\mˈastɔ͡ɪd bˈə͡ʊn], \mˈastɔɪd bˈəʊn], \m_ˈa_s_t_ɔɪ_d b_ˈəʊ_n]\
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By Princeton University
By DataStellar Co., Ltd
By Willam Alexander Newman Dorland