phosphorescence

Etymology

From phosphorescent. Morphologically phosphoresce + -ence.

noun

1. The emission of light without any perceptible heat; the quality of being phosphorescent.
   We saw a round red sun rise over the City, paint the glassy towers with phosphorescence and, as it brightened and lost its shape, sprinkle across the sky feathers of pink and lilac. 2002, Barbara Vine, Grasshopper, page 138