Correct spelling for the English word "chromiole" is [kɹˈə͡ʊmɪˌə͡ʊl], [kɹˈəʊmɪˌəʊl], [k_ɹ_ˈəʊ_m_ɪ__ˌəʊ_l] (IPA phonetic alphabet).
One of a number of minute granules of chromatin contained within, and with the homogeneous chromoplasm constituting the chromosome.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.