noun
inclination; angle of inclination; dip
Technical term used in geology, surveying, and physics for the angle a plane or line makes with the horizontal. Often used for rock strata, slopes, or magnetic dip.
この地層の傾角は約30度です。
The dip of this stratum is about 30 degrees.
傾角を測定するにはクリノメーターを使います。
A clinometer is used to measure the angle of inclination.