Macadam (noun)

A type of road construction method that involves layering small stones and gravel over a compacted base to create a smooth surface.

Origin:

Named after john loudon mcadam, a scottish engineer who pioneered the road-building technique in the late 18th and early 19th centuries.

Examples:

1. The road was recently repaved using the macadam method.
2. Macadam roads are durable and can last for many years with proper maintenance.
3. The macadam construction method was widely used in the 19th century to build roads throughout Europe and North America.
4. The cost of building macadam roads was relatively low compared to other road-building methods of the time.
5. The macadam method was eventually replaced by asphalt concrete as the preferred road-building technique.