lidar

[lahy-dahr]
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.


Origin:
presumably li(ght1) + (ra)dar

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American Heritage
Science Dictionary
lidar  [%PREMIUM_LINK%]     (lī'där)  Pronunciation Key 
  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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American Heritage
Abbreviations & Acronyms
lidar
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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Example sentences
In a lidar gun, electronics ramp up battery power to high voltage that drives a laser diode.
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