I. jəˈrasik, jüˈ-, -sēk adjective
Usage: usually capitalized
Etymology: French jurassique, from Jura, mountain range between France and Switzerland (from Latin) + -ique -ic
: constituting or relating to the period of the Mesozoic era preceding the Cretaceous and succeeding the Triassic and the corresponding system of rocks — see geologic time table
II. noun
( -s )
Usage: usually capitalized
: the Jurassic period or system of rocks