The Oxford dictionary defines polarize as to confine similar vibrations of (light waves, etc) to a single direction or plane.
Polarized light is light that's had its electric vector reflected in an orderly and predictable way. The difference between polarized light and unpolarized light is that unpolarized light is reflected in a random way, rather than organized, it is also more difficult to produce fully unpolarized light than completely polarized. It is the electric vector, not the magnetic vector of a light wave that produces the effects of polarization, in stating that, we can say tha…