RICKETTSIAS

\ɹɪkˈɛtsi͡əz], \ɹɪkˈɛtsi‍əz], \ɹ_ɪ_k_ˈɛ_t_s_iə_z]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd