Saurischia

plural noun

Saur·​is·​chia

sȯˈriskēə

: an order of archosaurian reptiles comprising the saurischians

Word History

Etymology

New Latin, from saur- + Latin ischium hip joint + New Latin -ia

First Known Use

1888, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now