from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or pertaining to an umbra.

from The Century Dictionary and Cyclopedia

  • Pertaining to an umbra.
  • n. In the classification of the Paleozoic series of Pennsylvania, according to H. D. Rogers, a group of rocks of great thickness, belonging to the Carboniferous, and lying between the Seral or Millstone-grit and the Vespertine.


Sorry, no etymologies found.



Log in or sign up to get involved in the conversation. It's quick and easy.