/tahr"mak/
1. Trademark. a brand of bituminous binder, similar to tarmacadam, for surfacing roads, airport runways, parking areas, etc.
n.
2. ( l.c. ) a road, airport runway, parking area, etc., paved with Tarmac, tarmacadam, or a layer of tar.
3. ( l.c. ) a layer or covering of Tarmac, tarmacadam, or tar.