Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A natural black bitumen used in the manufacture of acid, alkali, and waterproof coatings.
from The Century Dictionary.
- noun Gilsonite; a black, brilliant, and lustrous variety of bitumen giving a dark-brown streak, breaking with a beautiful conchoidal fracture, and having a hardness of from 2 to 2.5 and a specific gravity of from 1.065 to 1.07. It is easily fusible, dissolves in turpentine, and is used in making varnishes and in coverings for electric insulation.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[After the Uinta (Mountains).]
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Examples
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reesetee commented on the word uintaite
An extremely pure asphalt, particularly valuable for manufacturing paints and varnishes. Named for the Uinta Mountains in northeastern Utah and also called gilsonite.
September 9, 2009