adjective Ju·ras·sic \ju̇-ˈra-sik\

Definition of Jurassic

  1. :  of, relating to, or being the period of the Mesozoic era between the Triassic and the Cretaceous or the corresponding system of rocks marked by the presence of dinosaurs and the first appearance of birds



Origin and Etymology of jurassic

French jurassique, from Jura mountain range

First Known Use: 1831

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