1. a paving material of tar and broken stone; mixed in a factory and shaped during paving • Syn: tarmac • Derivationally related forms: tarmac (for: tarmac) • Hypernyms: paving, pavement, paving material 2. a paved surface having compressed layers of broken rocks held together with tar • Syn: tarmac, macadam • Derivationally related forms: macadamize (for: macadam), tarmac (for: tarmac) • Hypernyms: paved surface