Preferred Term:
bitumen
Definition:
Dark-colored (solid, semisolid, or viscous) cementitious substances, natural or manufactured, composed principally of high molecular weight hydrocarbons, of which asphalts, tars, pitches, and asphaltenes are typical.
Concept Schemes:
NALT Full
Broader Concept:
Entry Terms:
- asphalt
URI:
https://lod.nal.usda.gov/nalt/562
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2017-10-10
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