locator

[loh-key-ter, loh-key-ter]

noun

a person who locates something.
a person who determines or establishes the boundaries of land or a mining claim.

Sometimes lo·cat·er.

Origin of locator

1600–10; < Latin locātor a contractor, lessor, equivalent to locā(re) (see locate) + -tor -tor

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

He sensed Kerim's eyes on him but kept his gaze fixed on the locator plate.
The Winds of Time
James H. Schmitz
"Three miles from the buffalo waller," our locator had said.
Land of the Burnt Thigh
Edith Eudora Kohl
But the locator was not disturbed by a little thing like that.
Land of the Burnt Thigh
Edith Eudora Kohl
The locator signal is almost exactly north-by-northeast of us.
Four-Day Planet
Henry Beam Piper
It brought the dot up to dead center point in the locator plate and stopped.
The Winds of Time
James H. Schmitz

c.1600, of persons, from Latin locator, agent noun from locare (see locate). Of things which locate, from 1902.

locator in Medicine

(lō′kā′tər)

An instrument or apparatus for finding the position of a foreign object in tissue.