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tarmacadam

American  
[tahr-muh-kad-uhm] / ˈtɑr məˌkæd əm /

noun

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

Etymology

Origin of tarmacadam

First recorded in 1880–85; tar 1 + macadam

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.