'Jura-trias' definitions:

Definition of 'Jura-trias'

From: GCIDE

Jura-trias \Ju`ra-tri"as\, n. (Geol.) A term applied to many American Mesozoic strata, in which the characteristics of the Jurassic and Triassic periods appear to be blended. -- {Ju`ra-tri*as"sic}, a. [1913 Webster]