DIFFUSION PUMP

\dɪfjˈuːʒən pˈʌmp], \dɪfjˈuːʒən pˈʌmp], \d_ɪ_f_j_ˈuː_ʒ_ə_n p_ˈʌ_m_p]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd