plan position indicator


a radarscope on which an object reflecting radar waves shows its bearing and distance from the radar detector by causing a spot of light to appear on a screen that represents a map of the area around the detector. Abbreviation: PPI

Nearby words

  1. plait,
  2. plaiting,
  3. plan,
  4. plan b,
  5. plan on,
  6. plan view,
  7. plan-,
  8. planar,
  9. planar process,
  10. planaria

Origin of plan position indicator

First recorded in 1940–45 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019