Agoniatites

noun

Ago·​ni·​a·​ti·​tes

(ˈ)ā-ˌgō-nē-ə-ˈtī-(ˌ)tēz,

ə-

: a genus of Devonian ammonoid mollusks (family Goniatitidae)

Word History

Etymology

borrowed from New Latin, from a- a- entry 2 + Goniatites goniatites

First Known Use

1889, 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!