傾けい差さ

noun

magnetic dip; inclination of the compass needle

Specialized term in geomagnetism and navigation; refers to the vertical angle between the magnetic needle and the horizontal plane.

• 傾けい差さは地ち磁じ気きの伏ふっ角かくを表あらわす専せん門もん用よう語ごです。

  傾差 is a technical term for the inclination angle of the geomagnetic field.