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sensor

American  
[sen-sawr, -ser] / ˈsɛn sɔr, -sər /

noun

  1. a mechanical device sensitive to light, temperature, radiation level, or the like, that transmits a signal to a measuring or control instrument.

  2. a sense organ.


sensor British  
/ ˈsɛnsə /

noun

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

"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

Etymology

Origin of sensor

First recorded in 1925–30; sense + -or 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The device contains electrochemical sensors that continuously monitor intestinal gas production throughout the day and night.

From Science Daily

Shutdowns have caused problems for diabetic children whose sensors can’t transmit glucose levels to parents and warn them in case of emergencies.

From The Wall Street Journal

Given today’s spiraling vehicle-repair costs—and the fact that bumpers are full of sensors—I made a claim with my insurer, USAA, and brought it to one of its recommended auto-body shops.

From The Wall Street Journal

People will need a deeper understanding of sensors, with lidar serving as an essential tool for analyzing real-world data, he said.

From MarketWatch

Textron’s tech can also trick mine sensors into thinking a large boat is passing, triggering a relatively safe detonation.

From Barron's