MICROSCOPIC, MICROSCOPICAL

\mˌa͡ɪkɹəskˈɒpɪk], \mˌa‍ɪkɹəskˈɒpɪk], \m_ˌaɪ_k_ɹ_ə_s_k_ˈɒ_p_ɪ_k]\
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1899 - The american dictionary of the english language.
By Daniel Lyons
 
1919 - The Concise Standard Dictionary of the English Language
By James Champlin Fernald