• angle of dip of a rock stratum, fault or mineral vein
  • angle between the plane of the orbit of a body and the ecliptic; the inclination of a moon’s orbit is the angle between the plane of its orbit and the plane of its primary’s equator; for example, the moon does not rotate around the earth’s equator, but follows an orbit that is inclined in relation to the earth’s axis, which has an important effect on tides