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[lahy-dahr] /ˈlaɪ dɑr/
noun, Electronics, Optics.
a device similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles and varying physical conditions in the atmosphere.
Also called laser radar.
presumably li(ght1) + (ra)dar Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for laser radar
  • The speed measurement accuracy of the laser radar is verified by using speed surveys performed by the host agency.
  • Scanning infrared laser radar two-beam pattern across a traffic lane.
  • The department is currently utilizing mounted moving radars, handheld radars, and a couple of infra-red laser radar units.
  • The system uses a combination of millimeter wave and laser radar sensors, plus in-pavement loops to detect other vehicles.
laser radar in Science
  1. A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of pulsed laser light reflected from their surfaces. Lidar operates on the same principles as radar and sonar.

  2. The equipment used in such detection. See also Doppler effect, radar, sonar.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for laser radar


light detecting and ranging (laser radar)
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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