range finder


Definition of range finder

1 : an instrument used in gunnery to determine the distance of a target
2 : a surveying instrument (such as a transit) for determining quickly the distances, bearings, and elevations of distant objects
3 : a usually built-in adjustable optical device for focusing a camera that automatically indicates the correct focus (as when two parts of a split image are brought together)

Examples of range finder in a Sentence

Recent Examples on the Web The range finder, called a JIM LR, is like a pair of high-tech binoculars and likely part of the tranche of equipment supplied by the United States, said Sergeant Pysanka. New York Times, 6 June 2022 The laser beam would be reflected back to the range finder, which measured how long the beam’s round-trip took and translated that into distances that were accurate to within 6/100 of an inch per mile. Frederick Reimers, Outside Online, 26 Feb. 2019 These range finder binoculars provide fast measurement up to 540 yards, are super lightweight and portable, sport a water-resistant body and come with basic essentials like a carrying pouch, CR2 battery and microfiber cleaning cloth. Shanon Maglente, Good Housekeeping, 15 Apr. 2022 Surveyors often used a compass, measuring tape or laser range finder and an inclinometer to record the direction, distance and slope of the passage. Quinlan Bentley, The Enquirer, 14 Sep. 2021 The researchers added a range finder and a Wi-Fi sensor so the robot can avoid obstructions. Washington Post, 6 Apr. 2021 Other marine-binocular features might include a range finder or even stabilization technology, which makes higher-power glass (say above 7x magnification) more functional in the confines of a rocking boat. The Editors, Outdoor Life, 21 Oct. 2019 When shopping for range finders for rifle hunting, maximum range of measurement becomes more critical. The Editors, Field & Stream, 27 Sep. 2019 Additionally, WildCat’s laser range finders gauge its distance above the ground. David Wilson, Popular Mechanics, 16 Oct. 2019 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'range finder.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of range finder

1872, in the meaning defined at sense 2

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Time Traveler for range finder

Time Traveler

The first known use of range finder was in 1872

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ranged rubble

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Last Updated

10 Jun 2022

Cite this Entry

“Range finder.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/range%20finder. Accessed 28 Jun. 2022.

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More from Merriam-Webster on range finder

Britannica.com: Encyclopedia article about range finder


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