hematein
/ˌhiməˈtiɪn/
noun
- A dark purple or brown substance obtained from logwood, used as a dye and in biological stains.
- Biologists rely on hematein to highlight structures under the microscope.
- The fabric was dyed a deep purple using hematein from logwood extract.
- Hematein is commonly used to stain cell nuclei in laboratories.