range finder

or rangefinder


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.

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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. 2020

Example sentences from the Web for range finder

British Dictionary definitions for range finder

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
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