What is "myeloblast"

n. (context biology English) An immature cell of bone marrow that develops into a myelocyte

n. a precursor of leukocytes that normally occurs only in bone marrow

The myeloblast is a unipotent stem cell, which will differentiate into one of the effectors of the granulocyte series. The stimulation by G-CSF and other cytokines triggers maturation, differentiation, proliferation and cell survival. It is found in the bone marrow.