Try Our Apps


The Best Internet Slang


[sen-sawr, -ser] /ˈsɛn sɔr, -sər/
a mechanical device sensitive to light, temperature, radiation level, or the like, that transmits a signal to a measuring or control instrument.
Origin of sensor
First recorded in 1925-30; sense + -or2
Can be confused
censer, censor, censure, sensor. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for sensor
Contemporary Examples
Historical Examples
  • Id have rote you sooner only the sensor wont let me tell where I am an I couldnt think of nothin else to say.

    "Same old Bill, eh Mable!" Edward Streeter
  • The 2d we lodged at a sensor called Assambine, eleven miles, where were only a few poor cottages.

  • When you shot down that sensor, the starship did not retaliate, but went on without taking any notice of you.

    The Galaxy Primes Edward Elmer Smith
  • Then the CAD people added an algorithm that would take the sensor data and generate random variations on the same basis.


    Cory Doctorow
  • sensor technologies are grouped into four areas: active, passive, imbedded, and processing.

    Shock and Awe Harlan K. Ullman
British Dictionary definitions for sensor


anything, such as a photoelectric cell, that receives a signal or stimulus and responds to it
Word Origin
C19: from Latin sēnsus perceived, from sentīre to observe
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
Cite This Source
Word Origin and History for sensor

1947, from an adjective (1865), a shortened form of sensory (q.v.).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
sensor in Medicine

sensor sen·sor (sěn'sər, -sôr')

  1. A device, such as a photoelectric cell, that receives and responds to a signal or stimulus.

  2. See sense organ.

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

Word of the Day

Difficulty index for sensor

Many English speakers likely know this word

Word Value for sensor

Scrabble Words With Friends

Nearby words for sensor