[hee-muh-tee-in, hem-uh-, hee-muh-teen, hem-uh-]
  1. a reddish-brown, crystalline, slightly water-soluble solid, C16H12O6, obtained from logwood: used chiefly as a stain in microscopy.

Origin of hematein

variant of hematin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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[hē′mə-tēĭn, hēmə-tēn′]
  1. A reddish-brown crystalline compound used as an indicator and a biological stain.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.