'Trenton period' definitions:

Definition of 'Trenton period'

From: GCIDE
  • Trenton period \Tren"ton pe"ri*od\ (Geol.) A subdivision in the lower Silurian system of America; -- so named from Trenton Falls, in New York. The rocks are mostly limestones, and the period is divided into the Trenton, Utica, and Cincinnati epochs. See the Chart of Geology. [1913 Webster]