One of the mysteries of the English language finally explained.
Excessive proliferation of myeloblasts, resulting in their presence in the peripheral blood or tissues other than the bone marrow; specifically (more fully "avian myeloblastosis") a form of avian leukosis characterized by myeloblastic leukaemia.
1930s. From myeloblast + -osis. Compare slightly earlier erythroblastosis.
In this article we explore how to impress employers with a spot-on CV.