haematoxylon

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haematoxylon

The botanist examines the haematoxylon's distinctive spiny branches.

Definition

Noun 1. A genus of tropical American trees and shrubs: "Haematoxylon" is the scientific genus name for a small group of spiny, bushy shrubs or trees native to tropical America. The most notable species is Haematoxylum campechianum, commonly known as logwood.

Usage Notes
  • "Haematoxylon" is a highly specialized, scientific term used primarily in botany, taxonomy, and historical contexts related to dye production.
  • It is a proper noun (the name of a genus) and is typically capitalized.
  • In modern botanical classification, the genus name is often spelled Haematoxylum.
Examples
  • The dark heartwood of Haematoxylon was a historically important source of dye.
  • Botanists study the Haematoxylon genus for its unique characteristics.
  • The extract from Haematoxylon campechianum is used in histology to stain cell nuclei.
Advanced Usage
  • "Haematoxylin": This is a critical derivative. It is a compound extracted from the heartwood of and is used to produce a purple-blue stain, especially in histology (the study of tissues) and hematology (the study of blood).
    • The tissue sample was stained with haematoxylin and eosin for microscopic examination.
Variants and Related Words
  • Haematoxylum (n): The modern, alternate spelling of the genus name.
  • Logwood (n): The common name for .
  • Haematoxylin (n): The natural dye compound extracted from logwood, used as a biological stain.
  • Hematein (n): The oxidized form of haematoxylin, which is the actual staining agent.
Synonyms
  • Logwood tree (common name)
  • Bloodwood tree (a name referencing the red dye, from Greek meaning "blood" and meaning "wood")
Notes on Meaning

The word's etymology directly informs its meaning and historical use. It comes from the Greek haima (αἷμα, "blood") and xylon (ξύλον, "wood"), referring to the deep red dye produced from its heartwood. Therefore, the primary significance of "Haematoxylon" is not just the plant itself, but its role as the source of a valuable coloring agent.

haematoxylon

The botanist examines the haematoxylon's distinctive spiny branches.

Noun
  1. small genus of tropical American spiny bushy shrubs or trees

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