INTEREQUINOCTIAL

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