He's been hitting the bottle hard since his wife left him.

That is, when a colored surface is illuminated by light, an event takes place on the surface, and that event is characterized by a certain SSR. Since SSRs are defined in terms of percentages of reflectancy, the property holds constant over variations in illumination, so long as there is enough light of the right sort to produce a light-emitting event.

Coordinate term: hibernate

And when the seven among the four thousand, how many walletsful of fragments ye took up?