DISINFESTATION

\dˌɪsɪnfɛstˈe͡ɪʃən], \dˌɪsɪnfɛstˈe‍ɪʃən], \d_ˌɪ_s_ɪ_n_f_ɛ_s_t_ˈeɪ_ʃ_ə_n]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd