Inclinnometer \In`clin*nom"e*ter\, n. [Incline + -meter.] (Magnetism) An apparatus to determine the inclination of the earth's magnetic force to the plane of the horizon; -- called also {inclination compass}, and {dip circle}.
dip circle n : a measuring instrument for measuring the angle of magnetic dip (as from an airplane) [syn: {inclinometer}]