from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A tarmacadam road or surface, especially an airport runway.
  • transitive v. To cause (an aircraft) to sit on a taxiway.
  • intransitive v. To sit on a taxiway. Used of an aircraft.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The bituminous surface of a road.
  • n. Area of an airport where planes park or maneuver.
  • v. To pave
  • v. To spend time idling on a runway, usually waiting for takeoff clearance


Originally a trademark.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Shortening of tarmacadam, which is tar + macadam (crushed stones). (Wiktionary)



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