polarized waves.. can someone provide me a definition in 2 lines?!?

Answer 1

Waves eminated from a source (example, lightwaves from a bulb) are at random criscrossing orrientations. When that light passes through a polarizing lense, all light waves not lined up with the polarizer are blocked allowing only the ones that line up to pass through.

Example:

If the light wave were shaped like this: +
And it passed through a polarizing lense shaped like this: =
The polarized light would looke like this: -