Any of various thick, dark, sticky substances obtained from the distillation residue of coal tar, wood tar, or petroleum and used for waterproofing, roofing, caulking, and paving.

• 沥青，人造沥青某种厚厚的、黑而粘的物质，由炭焦、木焦或石油的剩余物中提炼出来，用于防水、盖屋顶、填缝和铺路