polar axis(redirected from polar axes)
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1. The axis in an equatorial mounting that is parallel to the Earth's axis and hence points toward the celestial poles.
2. See poles.
polar axis[′pō·lər ′ak·səs]
An axis of crystal symmetry which does not have a plane of symmetry perpendicular to it.
The directed straight line relative to which the angle is measured for a representation of a point in the plane by polar coordinates.