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range finder

or range·find·er

See more synonyms for range finder on Thesaurus.com
noun
  1. 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.
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Origin of range finder

First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rangefinder

Historical Examples

  • "Target—range one eight zero four, azimuth two four oh, elevation one oh seven," the rangefinder reported.

    A Question of Courage

    Jesse Franklin Bone

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

    A Question of Courage

    Jesse Franklin Bone

British Dictionary definitions for rangefinder

rangefinder

noun
  1. an instrument for determining the distance of an object from the observer, esp in order to sight a gun or focus a camera
  2. another word for tacheometer
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012