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

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

Other Words from Jurassic

Jurassic noun

First Known Use of Jurassic

1831, in the meaning defined above

History and Etymology for Jurassic

French jurassique, from Jura mountain range

Keep scrolling for more

Learn More about Jurassic

Time Traveler for Jurassic

Time Traveler

The first known use of Jurassic was in 1831

See more words from the same year

Statistics for Jurassic

Cite this Entry

“Jurassic.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Jurassic. Accessed 14 December 2019.

More from Merriam-Webster on Jurassic

Rhyming Dictionary: Words that rhyme with Jurassic

Comments on Jurassic

What made you want to look up Jurassic? Please tell us where you read or heard it (including the quote, if possible).


to assail by words or arguments

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!