ACHROMATICITY

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