C1nountechnologyscience
US/ˈsen.sər/
UK/ˈsen.sə/
a device that notices changes such as heat, light, movement or sound and reacts to them
In context
A motion sensor turns on the lights when someone walks into the room.
Sensors along the river send flood warnings to people's phones.
Self-driving cars use dozens of sensors to see the road around them.
Words that go with sensor
noun + noun
- motion sensorThe camera has a motion sensor that starts recording automatically.
- temperature sensorA temperature sensor warns the driver if the engine is too hot.
- sensor dataThe system analyzes sensor data in real time.
- image sensorA bigger image sensor gives better photos at night.
verb + noun
- install sensorsThe city will install sensors to measure air quality.