Definitions

1. noun

a thick, black, viscous, flammable, and water-repellent substance derived from petroleum, used for paving roads, roofs, and other surfaces.

“The city’s roads are covered in a thick layer of bitumen to protect them from water and extreme weather conditions.”

2. verb

to coat or cover with bitumen, especially for waterproofing or protection.

“The construction team bitumened the roof to prevent water from seeping in during heavy rainfall.”