range finder

or range·find·er


noun

any of various instruments for determining the distance from the observer to a particular object, as for sighting a gun or adjusting the focus of a camera.

Origin of range finder

First recorded in 1870–75

Example sentences from the Web for rangefinder

  • "Action imminent," Chase ordered, and the rangefinder took up his chant.

    A Question of Courage |Jesse Franklin Bone
  • "Target—range one eight zero four, azimuth two four oh, elevation one oh seven," the rangefinder reported.

    A Question of Courage |Jesse Franklin Bone

British Dictionary definitions for rangefinder

rangefinder
/ (ˈreɪndʒˌfaɪndə) /

noun

an instrument for determining the distance of an object from the observer, esp in order to sight a gun or focus a camera
another word for tacheometer