noun
- a red or pink synthetic dye used in inks, paints, and especially in biological staining of tissues
Usage: chemistry; biology
Examples
- The histologist used eosin to stain the tissue sample red for microscopic examination.
- Eosin is commonly paired with hematoxylin in standard laboratory staining procedures.
- The dye eosin gives red blood cells their characteristic pink appearance under the microscope.
- Eosin has been used in printing inks and cosmetics for over a century.
- The bright red color of eosin makes it useful for highlighting specific cellular structures.