'Huronian' definitions:

Definition of 'Huronian'

From: GCIDE

Huronian \Hu*ro"ni*an\, a. [Named from Lake Huron.] (Geol.) 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 Arch[ae]an age. [1913 Webster]