EMBRYONIC CELL

\ˌɛmbɹɪˈɒnɪk sˈɛl], \ˌɛmbɹɪˈɒnɪk sˈɛl], \ˌɛ_m_b_ɹ_ɪ__ˈɒ_n_ɪ_k s_ˈɛ_l]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd
 
1916 - Appleton's medical dictionary
By Smith Ely Jelliffe