or chiefly Brit  hae*ma*tox*y*lin  n :  a crystalline phenolic compound C₁₆H₁₄O₆ found in logwood and used chiefly as a biological stain because of its ready oxidation to hematein .
 
 
 
Similar sounding terms:  hae·ma·tox·y·lon 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.