1. an instrument that measures acceleration or changes in velocity
Usage: technical

Examples

• The smartphone’s accelerometer detects when you rotate the screen.
• Engineers used an accelerometer to measure the car’s acceleration during crash tests.
• The fitness tracker contains an accelerometer to count your steps.
• Aircraft use accelerometers to monitor flight stability.
• The accelerometer in the gaming controller responds to your movements.
• Scientists attached accelerometers to the building to study earthquake vibrations.