tiltmeters
/ˈtɪltˌmiːtərz/
noun
- An instrument used to measure small changes in the angle or tilt of the ground, often used to monitor volcanic activity or landslides.
- The tiltmeters recorded a slight shift in the hillside before the landslide occurred.
- Scientists installed tiltmeters around the volcano to detect any ground movement.
- Data from the tiltmeters helped engineers ensure the dam's foundation was stable.