Correct spelling for the English word "holadin" is [hˈɒlɐdˌɪn], [hˈɒlɐdˌɪn], [h_ˈɒ_l_ɐ_d_ˌɪ_n] (IPA phonetic alphabet).
Trade name of a preparation said to contain all the active principles of the pancreas; occurs as a grayish white powder furnished in 3-grain capsules.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.