marsh tea

noun

: a Eurasian bog shrub (Ledum palustre) that is distinguished from the closely related Labrador tea by its narrow leaves which are sometimes infused for use in killing vermin and parasites and that yields an oil from which ledol is obtained

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