Azolla

noun

Azol·​la

əˈzälə

: a genus of minute water ferns (family Salviniaceae) having a sporophyte consisting of pinnately branching stems with small distichous 2-lobed leaves

Word History

Etymology

New Latin

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