Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A yellow or red crystalline compound, C16H14O6·3H2O, the coloring material of logwood, that is used in dyes, inks, and stains.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A phenolic compound having the chemical formula C16H14O6, used to make dye for staining tissue samples. Extracted from the heart of the logwood tree, Haematoxylum campechianum.

from the GNU version of the Collaborative International Dictionary of English

  • n. Hæmatoxylin.

from The Century Dictionary and Cyclopedia

  • n. A dye obtained from the logwoodtree, Hæmatoxylon Campechianum, and having the chemical formula C16H14O6 + 2H2O.

Etymologies

New Latin Haematoxylon, a genus of plants (Greek haimato-, hemato- + Greek xylon, wood) + -in.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From the genus name Haematoxylum and the suffix -in (Wiktionary)

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