- a person or thing that detects.
- a device for detecting smoke, fire, or some other hazardous condition.
- a device for detecting the presence of metal, contraband, or other items that might be hidden or concealed.
Origin of detector
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for detector
Edwardson asked, over the clamor of the Detector alarm bell.The Hour of Battle
The detector, although the most important of the instruments, is perhaps the simplest.Boy Scouts Handbook
Boy Scouts of America
But of course they didn't have our detector screens nor our armament.Triplanetary
Edward Elmer Smith
It looped and turned, hunting, feeling with its every detector for that other ship.The Black Star Passes
John W Campbell
His detector now was in his hand, but Halsey anticipated him by a second or two.Wandl the Invader
Raymond King Cummings
- a person or thing that detects
- any mechanical sensing device
- electronics a device used in the detection of radio signals
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for detector
1540s, from Latin detector "uncoverer, revealer," agent noun from detectus, past participle of detegere (see detect).
Online Etymology Dictionary, © 2010 Douglas Harper