Correct spelling for the English word "papayotin" is [pˈape͡ɪˌɒtɪn], [pˈapeɪˌɒtɪn], [p_ˈa_p_eɪ_ˌɒ_t_ɪ_n] (IPA phonetic alphabet).
A proteolytic enzyme from the papaw, resembling papain in its action.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.