A basophil precursor in the granulocytic series, being a cell intermediate in development between a basophilic myelocyte and a band form basophil. The nucleus becomes indented where the indentation is smaller than half the distance to the farthest nuclear margin; chromatin becomes coarse and clumped; specific granules predominate while primary granules are rare. Markers are CD11b-positive, CD15-positive, CD16-positive, CD24-positive, CD33-positive, and CD13-positive. [ https://www.worldcat.org/search?q=bn%3A0721601464 http://www.ncbi.nlm.nih.gov/pubmed/18466030 ]