It's also an acronym for parabolic aluminized reflector.

"Parabolic aluminized reflector," he said.

Parabolic aluminized reflector (PAR) bulbs control light more precisely.

The suffix identifies the Source Four PAR as a parabolic aluminized reflector (PAR).

Parabolic Aluminized Reflector lights, or PAR lights, or PAR cans, are used when a substantial amount of flat lighting is required for a scene.

A parabolic aluminized reflector lamp (also PAR light, PAR can, or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination.