rangefinder

range finder

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.
Also, range·find·er.


Origin:
1870–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Rangefinder is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
the offspring of a zebra and a donkey.
Collins
World English Dictionary
rangefinder (ˈreɪndʒˌfaɪndə)
 
n
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

Collins English Dictionary - Complete & Unabridged 10th Edition
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