a device that detects or measures a physical property and records, indicates, or otherwise responds to it, a device that detects and responds to a signal or stimulus, especially one that automatically measures and records or communicates data

sensor network, biometric sensor, pressure sensor

Formal and Informal Expressions of sensor

In different contexts, you can replace 'sensor' with suitable alternatives. In a more formal setting, 'detector, transducer' is apt. In informal speech or writing, 'thing that senses' is a commonplace synonym.

sensor: Explore its Definition & Usage

sensor Definition

1a device that detects or measures a physical property and records, indicates, or otherwise responds to it
2a device that detects and responds to a signal or stimulus, especially one that automatically measures and records or communicates data

Using sensor: Examples

Take a moment to familiarize yourself with how "sensor" can be used in various situations through the following examples!

Example
The sensor on the thermostat detects the temperature in the room.
Example
The motion sensor turned on the lights when I entered the room.
Example
The car's sensors detected an obstacle and applied the brakes automatically.

sensor Synonyms and Antonyms

Synonyms for sensor

Phrases with sensor

sensor network
a group of interconnected sensors that work together to collect and transmit data
Example
The city has installed a sensor network to monitor traffic flow.
biometric sensor
a sensor that measures biological data, such as fingerprints, heart rate, or facial features
Example
The new smartphone has a biometric sensor that can unlock the device using facial recognition.
pressure sensor
a sensor that measures pressure, typically used in industrial or engineering applications
Example
The pressure sensor in the hydraulic system detected a leak and shut down the machinery.

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Summary: sensor in Brief

A 'sensor' [ˈsɛnsər] is a device that detects or measures a physical property and records, indicates, or otherwise responds to it. It can also detect and respond to a signal or stimulus, especially one that automatically measures and records or communicates data. Examples include the thermostat sensor that detects temperature, the motion sensor that turns on lights, and the car's sensors that detect obstacles and apply brakes automatically.