Jurassic
adjective/dʒʊˈræsɪk/
/dʒʊˈræsɪk/
(geology)- of the period between around 208 to 146 million years ago, when the largest known dinosaurs lived; of the rocks formed during this timeTopics Historyc2Word Originmid 19th cent.: from French jurassique; named after the Jura Mountains, in France and Switzerland.
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Jurassic