Macadam
/məˈkædəm/
Definition 1 of 1
Pro Tip 1/3Road Construction
Macadam refers to the durable material used specifically for paving roads. 
After years of complaints, the town finally upgraded the main street with macadam.
Pro Tip 2/3Historical Term
Originally, macadam was loose gravel, it evolved into asphalt which is more commonly used today. 
Old literature might refer to streets of macadam, meaning gravel roads of the past.
Pro Tip 3/3Technical Context
Macadam is used in engineering and construction contexts, not in everyday conversation. 
The civil engineering course includes a module on macadam road construction.