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Definition of sensor
1 : a device that responds to a physical stimulus (such as heat, light, sound, pressure, magnetism, or a particular motion) and transmits a resulting impulse (as for measurement or operating a control)
2 : sense organ
From the M-W Editors
Examples of sensor in a Sentence
Image sensors are used in digital cameras.
Infrared sensors can track an object's movement.
Recent Examples of sensor from the Web
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David Duma, the office’s acting director, wrote Defense Secretary Jim Mattis on June 6 that based on the positive test results and improvements to U.S. sensors and radar, his office upgraded its assessment of the system’s potential effectiveness.
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The company provides technology solutions, including GroundAware, a ground surveillance sensor system active since 2013.
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The company will offer the sensors as stand-alone technology for smartphone makers, and also include it with its Snapdragon mobile processor/cellular modem technology that powers many Android smartphones.
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The cameras are actually recording at all times, according to Guenther, but the devices erase footage after 30 seconds unless the officer pushes a button or the Bluetooth sensors are triggered, thus creating an ongoing file.
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Participant Mary Ann Stansberry had sensors on both regular and emergency inhalers.
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But Boissinot cautions that the sensor is not ready for deployment in the clinic.
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According to Raytheon, the Apache helicopter was outfitted with a test laser connected to the Multi-Spectral Targeting System, an advanced electro-optical infrared sensor typically found on unmanned drones such as the Predator and Reaper.
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The FDA cleared the Proteus sensor for marketing as a medical device in 2012.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sensor'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
Sensors are used today almost everywhere. Radar guns bounce microwaves off moving cars. A burglar alarm may use a photosensor to detect when a beam of light has been broken, or may use ultrasonic sound waves that bounce off moving objects. Still other sensors may detect pressure (barometers) or chemicals (Breathalyzers and smoke detectors). Stud finders, used by carpenters to locate wooden studs under a wall, may employ magnets or radar. Wired gloves, which relay information about the position of the fingers, are used in virtual-reality environments. A cheap car alarm may be nothing but a shock sensor, in which a strong vibration will cause two metal surfaces to come together.
Origin and Etymology of sensor
Latin sentire to perceive + English 1-or — more at sense
SENSOR Defined for English Language Learners
sensor
playDefinition of sensor for English Language Learners
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: a device that detects or senses heat, light, sound, motion, etc., and then reacts to it in a particular way
Medical Dictionary
Medical Definition of sensor
: a device that responds to a physical stimulus (as heat, light, sound, pressure, magnetism, or a particular motion) and transmits a resulting impulse (as for measurement or operating a control); also : sense organ
Learn More about sensor
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See words that rhyme with sensor Thesaurus: All synonyms and antonyms for sensor Spanish Central: Translation of sensor Nglish: Translation of sensor for Spanish speakers Britannica English: Translation of sensor for Arabic speakers Britannica.com: Encyclopedia article about sensor
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