inclinometer

From incline +‎ -o- +‎ -meter.

inclinometer (plural inclinometers)

1. An instrument that displays the angle of an aircraft relative to the horizon.
2. An instrument that measures magnetic dip; a dip circle.
3. A surveying instrument that measures angles of inclination or elevation; a clinometer.
   • 2022 October 5, Tom Allett, “HS2's green screen to aid the environment”, in RAIL, number 967, page 35:

     For the ground, that means using three primary types of equipment:
     ■ Extensometers to look for ground heave - the upwards movement of soil, which can occur at any stage. It is essentially the opposite of erosion and is often associated with clay-type soils which swell when wet.
     ■ Inclinometers, which measure slope movements.
     ■ Piezometers to measure water levels.

• clinometer

• inclinometer on Wikipedia.Wikipedia