Jurassic

adjective

Ju·​ras·​sic ju̇-ˈra-sik How to pronounce Jurassic (audio)
: 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
Jurassic noun

Word History

Etymology

French jurassique, from Jura mountain range

First Known Use

1831, in the meaning defined above

Time Traveler
The first known use of Jurassic was in 1831

Dictionary Entries Near Jurassic

Cite this Entry

“Jurassic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Jurassic. Accessed 2 Mar. 2024.

Kids Definition

Jurassic

adjective
Ju·​ras·​sic ju̇-ˈras-ik How to pronounce Jurassic (audio)
: of, relating to, or being a period of the Mesozoic era of geological history marked by the presence of dinosaurs and the first appearance of birds
also : relating to the corresponding system of rocks see geologic time
Jurassic noun
Etymology

from French jurassique "Jurassic," from Jura, a range of mountains between France and Switzerland formed from the limestone characteristic of this period

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