jurassic

(geology) Of or pertaining to the second period of the Mesozoic era, a time still dominated by dinosaurs.

(by extension, proscribed) Of or pertaining to the Mesozoic era as a whole.

(informal) Very old-fashioned and outdated.

Of or pertaining to the people or region near the Jura Mountain Range of Europe.

(geology, paleontology) The period from 201.3±0.2 to 145 million years ago, after the Triassic and before the Cretaceous; the geologic systems of this period.