bituminous

/baɪˈtuːmɪnəs/
adjective
  1. Containing or relating to bitumen, a black, sticky substance found in natural deposits like tar or asphalt.
    • The smell of bituminous tar filled the air near the construction site.
    • The road was paved with a bituminous mixture that made it durable and waterproof.
    • Bituminous materials are commonly used in roofing to prevent leaks.
  2. Describing a type of coal that is soft and produces a lot of smoke and heat when burned.
    • The factory switched from anthracite to bituminous coal because it was cheaper.
    • Bituminous coal is widely used in power plants to generate electricity.
    • Miners extracted bituminous coal from the deep seams of the Appalachian mountains.
Antonyms
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