Meaning of air-traffic control

air'-traf"fic control"

Pronunciation: (âr'traf"ik), [key]
  1. a government service that facilitates the safe and orderly movement of aircraft within and between airports by receiving and processing data from radar and devices that monitor local weather conditions and by maintaining radio contact with pilots.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.