tarmacadam

[ tahr-muh-kad-uh m ]
/ ˈtɑr məˌkæd əm /

noun

a paving material consisting of coarse crushed stone covered with a mixture of tar and bitumen.

Origin of tarmacadam

First recorded in 1880–85; tar1 + macadam
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019