Bothriocidaris
noun
Both·rio·cid·a·ris
\-ˈsidərə̇s\
Definition of Bothriocidaris
: a genus (coextensive with the family Bothriocidaridae and order Bothriocidaroida) of extinct primitive simple sea urchins that somewhat resemble Cystoidea and are known from the Ordovician of the Russo-Baltic area
Read the Latest from M-W
There's more!
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of bothriocidaris
New Latin, from bothri- + Cidaris
Seen and Heard
What made you want to look up Bothriocidaris? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!