'Jura' definitions:
Definition of 'Jura'
From: GCIDE
- Jura \Ju"ra\, prop. n. [F. & L.]
- 1. A range of mountains between France and Switzerland. [1913 Webster]
- 2. (Geol.) The Jurassic period. See Jurassic. [1913 Webster]
Definition of 'Jura'
From: GCIDE
- Jurassic \Ju*ras"sic\, a. (Geol.) Of the age of the middle Mesozoic, about 190 to 140 million years ago, including, as divided in England and Europe, the Lias, O["o]lite, and Wealden; -- named from certain rocks of the Jura mountains. It was noted for the predominance of dinosaurs on land, and the development of the first birds and mammals. -- n. The Jurassic period or formation; -- called also the Jura. [1913 Webster +PJC]