Anatinacea

plural noun

An·​a·​ti·​na·​cea

ˌanətəˈnāshēə

: a suborder of Eulamellibranchia of worldwide distribution comprising mollusks that have separate orifices for the ovaries and testes, a small foot, and the hinge of the shell without teeth

Word History

Etymology

New Latin, from Anatina, genus of mollusks (from Latin anat-, anas duck + New Latin -ina) + -acea

First Known Use

1872, 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