PROTOMAMMAL

\pɹˈə͡ʊtə͡ʊmˌamə͡l], \pɹˈə‍ʊtə‍ʊmˌamə‍l], \p_ɹ_ˈəʊ_t_əʊ_m_ˌa_m_əl]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd