VITREOUS SILICA

\vˈɪtɹi͡əs sˈɪlɪkə], \vˈɪtɹi‍əs sˈɪlɪkə], \v_ˈɪ_t_ɹ_iə_s s_ˈɪ_l_ɪ_k_ə]\
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2006 - WordNet 3.0
By Princeton University
 
2011 - English Dictionary Database
By DataStellar Co., Ltd