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Jurassic

Ju·ras·sic

Jurassic

 
pronunciation:
j rae sihk
parts of speech:
adjective, noun
part of speech: adjective
definition: of, relating to, or designating the geological period between the Triassic and Cretaceous of the Mesozoic Era, from approximately 180 million to 135 million years ago, when primitive birds appeared and conifers were prominent.
 
part of speech: noun
definition: the Jurassic Period, or the rock formations that date from that time.