albescent

adj

1. Becoming white or whitish; moderately white.

   “This proceedeth from the variety of air (commonly found in islands) which sometimes being moist, sullies and renders the cornelian pale or albescent, after the manner of glass, which when breath'd upon, is clouded with a pale whitish colour, but upon change to a drier air, which will often happen in a moment, the cornelian recovers its former brisk red colour.”

   “Albescent shapes played over the walls, teasing hundreds of drifty pleasures from his brain.”