Peridiniales

plural noun

Peri·​din·​i·​a·​les

: an order of algae (class Dinophyceae) that is coextensive with or somewhat more inclusive than the zoological family Peridiniidae

Word History

Etymology

borrowed from New Latin, from Peridinium peridinium + -ales -ales

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