path-finder

path·find·er

[path-fahyn-der, pahth]
noun
1.
a person who finds or makes a path, way, route, etc., especially through a previously unexplored or untraveled wilderness.
2.
an airplane, or a person dropped from a plane, sent into a target area to illuminate the area for succeeding aircraft.
3.
a radar beacon beamed into a target area to provide guidance for missiles seeking the target.
4.
( initial capital letter ) an unmanned spacecraft that landed on Mars on July 4, 1997, to obtain climatic and geologic data.

Origin:
1830–40, Americanism; path + finder

path·find·ing, noun, adjective
00:10
Path-finder is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
a gadget; dingus; thingumbob.
Dictionary.com Unabridged

Pathfinder, The

noun
a historical novel (1840) by James Fenimore Cooper.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
pathfinder (ˈpɑːθˌfaɪndə) [Click for IPA pronunciation guide]
 
n
1.  a person who makes or finds a way, esp through unexplored areas or fields of knowledge
2.  an aircraft or parachutist who indicates a target area by dropping flares, etc
3.  a radar device used for navigation or homing onto a target
 
'pathfinding
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

pathfinder path·find·er (pāth'fīn'dər)
n.
A filiform bougie for introduction through a narrow stricture as a guide for the passage of a larger instrument.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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