Jurassic[
dʒu'ræsik]
a. 侏



, 侏

系

n. 侏


jurassic
[ noun ]
- from 190 million to 135 million years ago; dinosaurs; conifers
<noun.time>
[ adj ]- of or relating to or denoting the second period of the Mesozoic era
<adj.pert>

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]