lidar

or LI·DAR

[ lahy-dahr ]

nounElectronics, Optics.
  1. a device similar to radar in principle and operation but using infrared laser light instead of radio waves and capable of detecting particles, distant objects, and varying physical conditions in the atmosphere.

Origin of lidar

1
1960–65; li(ght1) + (ra)dar
  • Also called laser radar .

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

Scientific definitions for lidar

lidar

[ där ]


  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.

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