camphor weed

noun

: any of several aromatic herbs: such as

a

: blue curls

b

: a ragweed (Ambrosia bidentata) of the prairie region of the U.S., with hairy stiff stems, sessile leaves, and 4-angled spiny fruits

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!