soundinsulator
nounUK /ˈsaʊndˌɪnsjʊleɪtə/
US /ˈsaʊndˌɪnsəleɪtər/
A sound insulator is a thing that stops sound from going through.
The wall has a sound insulator so the loud music does not bother the neighbors.
RELATED WORDS
OTHER MEANINGS
2. A material used in buildings to keep noise from passing between rooms.
They put a sound insulator between the floors of the apartment.
3. A device or layer inside machines that makes them quieter.
The engine has a sound insulator to reduce the noise it makes.
4. A person or company that installs materials to block sound.
The sound insulator came to fix the noisy office walls.