Jurassic: Meaning and Definition of

Ju•ras•sic

Pronunciation: ( joo-ras'ik), [key]
— Geol. Geol.
—adj.
  1. noting or pertaining to a period of the Mesozoic Epoch, occurring from 190 to 140 million years ago and characterized by an abundance of dinosaurs and the advent of birds and mammals. See table under
—n.
  1. the Jurassic Period or System.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
Jura Mountains jurat
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