(quantum field theory) One of a set of three spacelike (and possibly also one timelike) four-dimensional vectors which are orthonormal within some inertial reference frame.

plural of polarization vector

plural of polar willow

Alternative form of pole star

Alternative spelling of nonpolar

Representative of electric potential at the ends of a circuit which consists of positive and negative polarities.

The polarization of the light received from distant stars as a result of interaction with dust particles

(mathematics) The coordinates of a point in a plane, measured as its Cartesian distance from the origin and the angle measured anticlockwise/counterclockwise from the x-axis to a line joining the point to the origin.

(physics) light in which the electric and magnetic fields each vibrate in a single plane

A very large bear, Ursus maritimus, found in the Arctic Circle, white in appearance and very furry.