Pronunciation: (tär'mak), [key]
Trademark.a brand of bituminous binder, similar to tarmacadam, for surfacing roads, airport runways, parking areas, etc.
1. (l.c.) a road, airport runway, parking area, etc., paved with Tarmac, tarmacadam, or a layer of tar.
2. (l.c.) a layer or covering of Tarmac, tarmacadam, or tar.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.