SINCE 1828
Jurassic
adjective
Ju·ras·sic
| \ ju̇-ˈra-sik
\
\
Definition of Jurassic
: 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 — see Geologic Time Table
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Merriam-Webster unabridged
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