PERIODOLOGY

\pˌi͡əɹɪədˈɒləd͡ʒi], \pˌi‍əɹɪədˈɒləd‍ʒi], \p_ˌiə_ɹ_ɪ__ə_d_ˈɒ_l_ə_dʒ_i]\
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1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison