Correct spelling for the English word "siderol" is [sˈa͡ɪdəɹˌɒl], [sˈaɪdəɹˌɒl], [s_ˈaɪ_d_ə_ɹ_ˌɒ_l] (IPA phonetic alphabet).
Trade name of a preparation said to contain beef essence and iron and phosphorus in organic combination; recommended as a hematuric in anemia, neurasthenia, rickets, and general debility.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.