macadam /məˈkædəm/noun 2verb 1forms 5 noun2 •The surface of a road consisting of layers of crushed stone (usually tar-coated for modern traffic).This narrow-gauge line had suffered the same fate as that between Schull and Skibbereen, with the track taken up except where it runs through one of the town streets and is embedded in the macadam. — 1955 •(US, old-fashioned) Any road or street. verb1 •To cover or surface with macadam. formsmacadamed · macadammed · macadaming · macadamming · macadams
