Definition: Pruinescence is a concept in physics that describes the behavior of light as it propagates through space. It's named after the Swiss physicist Hermann PrΓΌser, who first proposed this concept in 1928. In the context of pruinescence, the term "light" refers to any form of electromagnetic radiation, such as visible light (infrared, ultraviolet, and visible), x-rays, gamma rays, radio waves, or microwaves. The term