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- pronunciation:
- sen
s
 r
- features:
- Word Combinations (noun), Word Explorer
| part of speech: |
noun |
| definition: |
a device that detects and responds to certain changes in the environment. Sensors respond to light, temperature, sound, or pressure and then send information to other instruments.
The light goes on if a person walks by the sensor. |
| related words: |
monitor |
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