EXTRASPICULAR

\ˌɛkstɹəspˈɪkjʊlə], \ˌɛkstɹəspˈɪkjʊlə], \ˌɛ_k_s_t_ɹ_ə_s_p_ˈɪ_k_j_ʊ_l_ə]\
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1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth