Jurassic
[dʒu'ræsik]
Definition
(noun.) from 190 million to 135 million years ago; dinosaurs; conifers.
(adj.) of or relating to or denoting the second period of the Mesozoic era .
Inputed by Doris--From WordNet
Definition
(a.) Of the age of the middle Mesozoic, including, as divided in England and Europe, the Lias, Oolite, and Wealden; -- named from certain rocks of the Jura mountains.
(n.) The Jurassic period or formation; -- called also the Jura.
Typist: Sharif
Definition
adj. (geol.) one of the three divisions of the Mesozoic rocks including the Lias and Oolites and so called from its well-developed strata in the Jura Mountains.
Checked by Delores