Correct spelling for the English word "mydrol" is [mˈɪdɹɒl], [mˈɪdɹɒl], [m_ˈɪ_d_ɹ_ɒ_l] (IPA phonetic alphabet).
Trade name of a white powder, iodomethylphenyl pyragolon; mydriatic in 10 per cent. aqueous solution.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.