from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to certain non-fossiliferous rocks on the borders of Lake Huron, which are supposed to correspond in time to the latter part of the Archæan age.
from The Century Dictionary and Cyclopedia
- Of or pertaining to Lake Huron, the central one of the chain of great lakes between the United States and British America.
Sorry, no etymologies found.