eosinophil
Meaning
a type of white blood cell or leukocyte that is readily stained by eosin dye.
a cell, tissue, or organism that is readily stained by eosin.
Structure
Usage
an elevated eosinophil count in the blood can indicate an allergic reaction or a parasitic infection.
the pathologist noted the presence of numerous eosinophils in the tissue biopsy.
eosinophils play a crucial role in the body's immune response against certain parasites.
Etymology
the term 'eosinophil' is a modern scientific compound, precisely descriptive of the cell's staining properties. the first element, 'eosin', originates from the greek 'eos', meaning 'dawn', as the dye produces a brilliant rose-pink color reminiscent of the dawn sky. the second element, '-phil', derives from the greek 'philos', meaning 'loving' or 'having an affinity for'. thus, the word's literal construction means "eosin-loving," which directly and logically describes the defining characteristic of these cells: their cytoplasm contains granules that readily absorb and are stained by the eosin dye in laboratory preparations. this naming convention is typical in histology and hematology, where cells are classified based on their reactions to specific stains.
Analysis
eosin: from greek 'eos' (dawn, goddess of dawn) + the chemical suffix '-in'. the name of a red acidic dye, referring to its rosy, dawn-like color. phil: from greek 'philos' (loving, having an affinity for). a combining form denoting an attraction to or affinity for something.