my·e·loid \ˈmīəˌlȯid\adjective Etymology: International Scientific Vocabulary myel- + -oid 1.: of or relating to the spinal cord 2.: of, relating to, arising from, or like the bone marrow; especially: of or relating to myeloblasts or to cells derived from them < the myeloid series consists of myeloblasts, myelocytes, and true granulocytes > — compare erythroid