macadam n. The broken stone used in macadamized roadways.[WordNet 1.5]
2. A paved surface formed of compressed layers of broken rocks held together with tar.Syn. -- tartarmac, macadam.[WordNet 1.5]
macadam macadamized adj. 1. paved with macadam{2}.Syn. -- asphalt, tarmac, tarmacadam.[WordNet 1.5]