lady fern

noun

: a widely distributed fern (Athyrium filix-femina) with slender bipinnate fronds showing considerable variation in form

broadly : any fern of the genus Athyrium

—usually used with a qualifying term

Word History

First Known Use

1783, 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