soundsensor
nounUK /ˈsaʊnd ˌsɛnsə/
US /ˈsaʊnd ˌsɛnsər/
A sound sensor is a small device that hears sounds around it and tells a machine about them.
The robot's sound sensor made it turn around when we clapped our hands.
RELATED WORDS
OTHER MEANINGS
2. A part in a phone or toy that listens for a command like a clap or a word.
The lamp has a sound sensor, so it turns on when you clap.
3. A tool that measures how loud a place is.
The teacher used a sound sensor to check how noisy the classroom was.
4. A piece of a security system that notices loud noises like breaking glass.
The alarm's sound sensor went off when the window smashed.