Correct spelling for the English word "soloid" is [sˈɒlɔ͡ɪd], [sˈɒlɔɪd], [s_ˈɒ_l_ɔɪ_d] (IPA phonetic alphabet).
Trade name of a figure in the shape of a truncated cone into which certain salts and other drugs are compressed for convenience in dispensing.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.