Agarum

noun

Ag·​a·​rum

ˈa-gə-rəm

: a genus of kelps (family Laminariaceae) inhabiting the colder oceans and having a branched holdfast, a brief stipe, and a lamina with smooth perforated margins

Word History

Etymology

New Latin, from English agar

First Known Use

1853, 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