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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.

Alcutt patrols the streets and relies on sensors and geotrackers to get alerts when the lines are being tampered with or removed.

From The Wall Street Journal

Because of these qualities, graphene is considered a "miracle material" and is already being explored for flexible electronic screens, highly sensitive sensors, advanced batteries, and next-generation solar cells.

From Science Daily

The maker of sensors used in cars and robots announced the development this week, sending shares soaring.

From The Wall Street Journal

Safety technology, such as sensors, can be ineffective and costly to repair, they will argue.

From The Wall Street Journal

Most competitors use an approach that relies on a mix of sensors and light detection and ranging, or lidar, to map environments.

From MarketWatch