Agassizocrinus

noun

Ag·​as·​siz·​o·​cri·​nus

ˌa-gə-ˌsē(z)-ə-ˈkrī-nəs

: a genus of fossil crinoids known chiefly from Mississippian formations of North America and characterized by a thick-walled ovoid cup

Word History

Etymology

New Latin, from Alexander Agassiz + New Latin -o- + -crinus (from Latin crinis hair)

First Known Use

1859, 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