range finder

noun

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 cameras were trained at the road and activated by an array of ambient light sensors, range finders, and remote speedometers. Russell Brandom, The Verge, "New Homeland Security system will bring facial recognition to land borders this summer," 5 June 2018 Major automakers—along with upstarts such as Tesla and Uber—are racing to put self-driving cars on the road, leading to advances in enabling technologies such as laser range finders known as lidars. Michael Belfiore, Scientific American, "Portable Laser Range Finder Enables Real-Time 3-D Mapping," 1 May 2017 Investigators also found body armor, range finders and a homemade gas mask. Adam Goldman And Jennifer Medina, New York Times, "Las Vegas Gunman Took Elaborate Steps to Hide His Tracks, New Documents Show," 12 Jan. 2018 Concentrated, unfiltered sunlight can damage your single lens reflex camera’s sensor and cause eye damage when viewed through the optics of a range finder camera. Wsj Roundup, WSJ, "A Viewer’s Guide to How, When and Where to Watch the Eclipse," 18 Aug. 2017

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.

See More

First Known Use of range finder

1872, in the meaning defined at sense 2

Keep scrolling for more

Learn More about range finder

Share range finder

Statistics for range finder

Look-up Popularity

Time Traveler for range finder

The first known use of range finder was in 1872

See more words from the same year

More from Merriam-Webster on range finder

Rhyming Dictionary: Words that rhyme with range finder

Britannica.com: Encyclopedia article about range finder

Comments on range finder

What made you want to look up range finder? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a typical or ideal example

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!