- polar coordinate measurement by rotating ray cluster
- polar coordinates
- polar coordinates positioning
- polar coordinates system
- polar coordinate system
- polar correspondence
- polar crystal
- polar curve
- polar cushion
- polar cusp
- polar cycle
- polar day
- polar decomposition
- polar decomposition theorem
- polar determinant
- polar diagram
- polar dial
- polar diameter
- polar dielectrics
- polar direction
- polar discontinuity
- polar displacement
- polar distance
- polar distance degrees
- polar divisor