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Related to dip circle: dip needle
(General Physics) an instrument for measuring dip, consisting of a dip needle with a vertical circular scale of angles. Also called: inclinometer
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|Noun||1.||dip circle - a measuring instrument for measuring the angle of magnetic dip (as from an airplane)|
aeroplane, airplane, plane - an aircraft that has a fixed wing and is powered by propellers or jets; "the flight was delayed due to trouble with the airplane"