HEMISPHEROIDAL

\hˈɛmɪsfəɹˌɔ͡ɪdə͡l], \hˈɛmɪsfəɹˌɔ‍ɪdə‍l], \h_ˈɛ_m_ɪ_s_f_ə_ɹ_ˌɔɪ_d_əl]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.