Final answer:
A myelocyte is a large pale-staining cell with no prominent nucleoli. It belongs to the neutrophil type of granular leukocytes and is one of the most numerous white blood cells.
Step-by-step explanation:
The large pale-staining cell with no prominent nucleoli is known as a myelocyte. Myelocytes are a type of granular leukocyte, specifically a neutrophil, which is one of the most numerous types of white blood cells. They have a single nucleus and large pale cytoplasmic granules that stain light lilac.