adj

Jurassic

juu-RAS-ihk

adj

Relating to the geological period from about 201 to 145 million years ago, when dinosaurs dominated the Earth.

"Fossils from the Jurassic period are on display at the museum."

Informally, extremely old-fashioned or outdated.

"His attitudes toward technology are downright Jurassic."

How to Use Jurassic

Learner’s notes

In plain EnglishRelating to the age of the dinosaurs, or, informally, hopelessly old-fashioned.

Common pairings

Jurassic period Jurassic era

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Fossils from the _____ period are on display at the museum.

Named after the Jura Mountains in France and Switzerland, where rock layers from this period were first studied.

classic