luminousness

English

Etymology

From luminous +‎ -ness.

Noun

luminousness (countable and uncountable, plural luminousnesses)

1. The quality of being luminous.
   • 1927, Willa Cather, Death Comes for the Archbishop, Book VII, section 2, page 212:

     The full moon, hidden by veils of cloud, threw a pale phosphorescent luminousness over the heavens, and the towers of the church stood up black against this silvery fleece.