broken stone used in macadamized roadways
a paved surface having compressed layers of broken rocks held together with tar
The surface of a road consisting of layers of crushed stone (usually tar-coated for modern traffic).
To cover or surface with macadam.
Alternative form of MacAdam
A surname, from Scottish Gaelic​.
The word "macadam" is named after Scottish engineer John Loudon McAdam, who invented a specific method for building roads. Originally referring to surfaces made with his technique, the term is now often used to describe any paved road or street.