an instrument showing the angle that an aircraft makes with the horizon

a measuring instrument for measuring the angle of magnetic dip (as from an airplane)

an instrument used by surveyors in order to measure an angle of inclination or elevation

an instrument used to measure the angle of thoracic prominence, referred to as angle of trunk rotation (ATR).

Device to show the angle with the horizontal or the inclination of the earth's magnetic field.

An instrument used to measure the angle of elevation to a satellite from the surface of the earth.

The trade name of an instrument used to determine whether or not the well bore is proceeding in a vertical orientation at any point. In most drilling operations, either government bodies or contract stipulations or both, provide a maximum deviation of the well bore from the vertical; commonly, this maximum is three degrees. When deviation is in excess of the allowable, it is necessary to modify drilling procedures to bring it back in line.

An inclinometer or clinometer is an instrument for measuring angles of slope (or tilt), elevation or inclination of an object with respect to gravity. It is also known as a tilt meter, tilt indicator, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, and pitch & roll indicator.