BENZENE NUCLEUS

\bˈɛnziːn njˈuːklɪəs], \bˈɛnziːn njˈuːklɪəs], \b_ˈɛ_n_z_iː_n n_j_ˈuː_k_l_ɪ__ə_s]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd