Tarmac

What is Tarmac ?

Tarmac is trademark a trademark for a hard road surface made of tar mixed with small stones The sun was so hot, the Tarmac was starting to melt. (noun) the areas of an airport covered with Tarmac, especially a runway The snow ploughs were working flat out to clear the snow from the Tarmac.

 

source: Easier English, Student Dictionary Upper Intermediate Level