SECTORIAL
\sɛktˈɔːɹɪəl], \sɛktˈɔːɹɪəl], \s_ɛ_k_t_ˈɔː_ɹ_ɪ__ə_l]\
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2010
- New Age Dictionary Database
By Oddity Software
1913
- Webster's Revised Unabridged Dictionary
By Noah Webster.
1920
- A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.