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Meaning of downrange

down•range

Pronunciation: (adj.doun'rānj"adv.doun'rānj'), [key]
— adj., adv. Rocketry.
  1. being in the designated path from a launch pad to the point on a course generally taken as the target: The signal was picked up by a downrange radar station.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.