actinocrinite

noun

ac·​ti·​no·​cri·​nite

ˌak-tə-(ˌ)nō-ˈkrī-ˌnīt

plural -s

: a fossil crinoid of Actinocrinus or a related genus

Word History

Etymology

probably from French, from New Latin Actinocrinus + French -ite

First Known Use

1839, in the meaning defined above

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!