facular

adj

1. (not-comparable)Of or pertaining to the faculae.

   “facular granules”

   “facular atmosphere”

   “facular brightening”

   “While we were still far from the place of explosion, and intent on the study of the great facular waves which were passing swiftly beneath us, we suddenly heard a series of explosions so tremendous that we imagined a new eruption was commencing close by.”