OXYMETHYLENE

\ˌɒksɪmˈɛθɪlˌiːn], \ˌɒksɪmˈɛθɪlˌiːn], \ˌɒ_k_s_ɪ_m_ˈɛ_θ_ɪ_l_ˌiː_n]\
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2010 - New Age Dictionary Database
By Oddity Software
 
1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.