Final answer:
The cell described with a round eccentric nucleus, clumped chromatin, and basophilic cytoplasm is a basophil, a type of white blood cell involved in immune response, particularly allergic reactions.
Step-by-step explanation:
The description provided fits a basophil, which is a type of white blood cell characterized by a round eccentric nucleus with clumped chromatin and a high nucleus to cytoplasm ratio. The basophilic cytoplasm signifies that the cytoplasm stains a basic (alkaline) dye, leading to a dark blue or purple colorization due to the presence of large granules which stain dark blue to purple. Additionally, the 'crescent shaped clear area next to the nucleus' can be associated with the light area around the nucleus where the dense granules do not cover, being a typical feature of granular leukocytes like basophils.
Beyond the explanatory features such as a two-lobed nucleus and basophilic granules, basophils are also larger compared to other granular leukocytes such as neutrophils and eosinophils, typically measuring around 12-15 μm in diameter. Basophils play a role in allergic reactions and are the least common type of granulocyte found in the bloodstream. Detailed examination of these cellular characteristics is carried out in fields such as hematology and pathology to identify and understand the behavior of immune cells.